CN105554779A

CN105554779A - Shortwave message photoelectric observation and transmission system and communication method thereof

Info

Publication number: CN105554779A
Application number: CN201511027943.4A
Authority: CN
Inventors: 贺莉; 郭永刚; 赵高院; 陈志恒; 张博; 王宁; 苏庆伟; 王莹; 马雅楠; 马瑞
Original assignee: SHAANXI FENGHUO INDUSTRIAL Co Ltd
Current assignee: SHAANXI FENGHUO INDUSTRIAL Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-05-04

Abstract

The invention discloses a shortwave message photoelectric observation and transmission system. The shortwave message photoelectric observation and transmission system comprises a shortwave full duplex central station and a communication substation subnet, wherein the shortwave full duplex central station comprises a central station external device, a receiving station, a transmitting station, a central station automatic antenna tuner, and a central station shortwave communication controller; the communication substation subnet comprises M far-end stations; the receiving station comprises a shortwave antenna multicoupler, shortwave duplex receivers, and a receiving station shortwave communication controller; the transmitting station comprises transmitting station automatic antenna tuners and shortwave transmitters; each far-end station among the M far-end stations comprises a photoelectric detection device, a far-end shortwave communication controller, a shortwave transceiver, and a far-end automatic antenna tuner.

Description

A kind of shortwave information photoelectricity observes transmission system and communication means thereof

Technical field

The invention belongs to communication technical field, particularly a kind of shortwave information photoelectricity observes transmission system and communication means thereof, is applicable to the shortwave information transmission of photoelectricity observed data.

Background technology

The development of the communication technology, day by day urgent to the requirement of shortwave group network system, the present inventor is found, a kind of radiothermy full duplex of current shortage technology, shortwave burst waveform modulation-demodulation technique, shortwave point-to-point (P2P) pattern quick detection technology, short frequency Detection Techniques, the short wave network system that short-wave signal detected and intercepted technology, calling link setup technology integrates, realize a kind of shortwave photoelectricity observed information group network system, and then complete the object of implementing monitoring relevant range.

Summary of the invention

Have problems for above prior art, the object of the invention is to propose a kind of shortwave information photoelectricity and observe transmission system and communication means thereof, this a kind of shortwave information photoelectricity observes transmission system and communication means thereof can not only realize frequency fixing communication that former short-wave radio set has, the communication pattern of automated communications and simulated, digitized data service mode, also can realize the round-the-clock real-time anti-interference speech of shortwave full duplex central station with the substation that communicates, the object of data communication.

For achieving the above object, the present invention adopts following technical scheme to be achieved.

Technical scheme 1:

A kind of shortwave information photoelectricity observes transmission system, and it is characterized in that, comprise shortwave full duplex central station and the substation subnet that communicates, described shortwave full duplex central station comprises receiving station, cell site; Described communication substation subnet comprises M the far-end station.

Described receiving station comprises short-wave antenna duplexer, shortwave duplex receiver, receiving station's short wave communication controller.

Described cell site comprises cell site's automatic antenna tuner, short-wave transmitter;

Each far-end station in described M the far-end station comprises photoelectronic reconnaissance equipment, far-end short wave communication controller, short-wave transceiver, far-end automatic antenna tuner;

Described short-wave antenna duplexer connects shortwave duplex receiver, receiving station's short wave communication controller successively, described shortwave duplex receiver connects short-wave transmitter, cell site's automatic antenna tuner successively, and described cell site automatic antenna tuner connects far-end automatic antenna tuner, short-wave transceiver, far-end short wave communication controller and photoelectronic reconnaissance equipment successively.

Photoelectricity investigation equipment scouts the photooptical data information in its observation scope, and the described photooptical data information of investigating is sent to far-end short wave communication controller, the described photooptical data information received is sent to short-wave transceiver by far-end short wave communication controller, after short-wave transceiver carries out modulation treatment to the described photooptical data information received, produce light modulated electrical data signal breath, and be sent to far-end automatic antenna tuner, light modulated electrical data signal breath is sent to short-wave antenna duplexer by far-end automatic antenna tuner again, short-wave antenna duplexer is sent to shortwave duplex receiver after receiving light modulated electrical data signal breath, shortwave duplex receiver carries out demodulation process to modulation photooptical data information, obtain primary light electrical data signal breath, again primary light electrical data signal breath is sent to receiving station's short wave communication controller,

Receiving station's short wave communication controller determines according to primary light electrical data signal breath the control command that this primary light electrical data signal breath is corresponding, and described control command is handed down to shortwave duplex receiver, shortwave duplex receiver generates photoelectricity modulating data after carrying out modulation treatment to control command, again this photoelectricity modulating data is sent to short-wave transmitter, short-wave transmitter is sent to cell site's automatic antenna tuner after carrying out power amplification to described photoelectricity modulating data, photoelectricity modulating data after power amplification is sent to far-end automatic antenna tuner by cell site's automatic antenna tuner, photoelectricity modulating data after described power amplification is the radiofrequency signal being loaded with control command, the described radiofrequency signal being loaded with control command is after the long-distance transmissions in setting range, arrive far-end automatic antenna tuner, the described radiofrequency signal being loaded with control command is sent to short-wave transceiver by far-end automatic antenna tuner, short-wave transceiver carries out demodulation process to the described signal being loaded with the radiofrequency signal of control command again, obtain original control command, and this original control command is sent to far-end short wave communication controller.

Wherein, described shortwave duplex receiver also comprises receiver external equipment, and for receiving data information, described data message comprises voice messaging, image information or Word message; Described receiver external equipment is computer or microphone.

The described radiofrequency signal being loaded with control command is after the long-distance transmissions in setting range, and arrive far-end automatic antenna tuner, wherein setting range is 200km ~ 2000km.

Technical scheme two:

A kind of shortwave information photoelectricity observes the communication means of transmission system, transmission system is observed based on shortwave information photoelectricity, described shortwave information photoelectricity observes transmission system, comprise: shortwave full duplex central station and the substation subnet that communicates, described shortwave full duplex central station comprises receiving station and cell site, and described receiving station comprises short-wave antenna duplexer, shortwave duplex receiver, receiving station's short wave communication controller; Described cell site comprises short-wave transmitter, cell site's automatic antenna tuner; Described communication substation subnet, comprise M the far-end station, described M the far-end station comprises photoelectronic reconnaissance equipment, short-wave transceiver, far-end automatic antenna tuner, far-end short wave communication controller respectively, described shortwave duplex receiver also comprises receiver external equipment, described receiver external equipment is used for receiving data information, and described data message comprises voice messaging, image information or Word message; The communication means that described a kind of shortwave information photoelectricity observes transmission system is divided into uplink communication to communicate with downlink, is specially:

Uplink communicates: photoelectricity investigation equipment scouts the photooptical data information in its observation scope, and the described photooptical data information of investigating is sent to far-end short wave communication controller, the described photooptical data information received is sent to short-wave transceiver by far-end short wave communication controller, after short-wave transceiver carries out modulation treatment to the described photooptical data information received, produce light modulated electrical data signal breath, and be sent to far-end automatic antenna tuner, light modulated electrical data signal breath is sent to short-wave antenna duplexer by far-end automatic antenna tuner again, short-wave antenna duplexer is sent to shortwave duplex receiver after receiving light modulated electrical data signal breath, shortwave duplex receiver carries out demodulation process to modulation photooptical data information, obtain primary light electrical data signal breath, again primary light electrical data signal breath is sent to receiving station's short wave communication controller,

Downlink communicates: receiving station's short wave communication controller determines according to primary light electrical data signal breath the control command that this primary light electrical data signal breath is corresponding, and described control command is handed down to shortwave duplex receiver, shortwave duplex receiver is by short-wave antenna duplexer receiving data information, and after respectively modulation treatment is carried out to the data message received and control command, obtain the control command after the audio-frequency information after modulating and modulation respectively, and the control command after the audio-frequency information after modulation and modulation is sent to short-wave transmitter respectively, short-wave transmitter carries out power amplification respectively to the control command after the audio-frequency information after modulation and modulation, obtain the data message after power amplification and the control command after power amplification respectively, again the data message after power amplification and the control command after power amplification are sent to cell site's automatic antenna tuner respectively, and far-end automatic antenna tuner is sent to respectively after antenna match, last short-wave transceiver carries out demodulation respectively to the data message after power amplification and the control command after power amplification, obtain the data message after demodulation and the control command after demodulation respectively, and the control command after demodulation is sent to far-end short wave communication controller, data message after demodulation is sent.

Feature and further improvement of technique scheme are:

(1) described shortwave duplex receiver also comprises K interface circuit, for carrying out pulse code modulation; Information and the control command after modulating after described modulation, be specially pcm audio data-signal and PCM control coding signal, described PCM coded data signal and PCM control coding signal are that the data message that receives of shortwave duplex receiver and control command are carried out pulse code modulation respectively by described K interface circuit and obtained.

(2) described short-wave transmitter carries out power amplification respectively to the control command after the data message after modulation and modulation, be specially: be first by modulation after data message and modulation after control command be separately converted to base-band audio signal and base band control command, then respectively power amplification is carried out to base-band audio signal and base band control command.

(3) described shortwave duplex receiver also comprises receiver external equipment, and described receiver external equipment comprises microphone or computer, and for receiving or sending data message, described data message comprises voice messaging, image information or Word message; Shortwave duplex receiver is by short-wave antenna duplexer receiving data information, be specially: described microphone or computer receiving data information, shortwave duplex receiver by short-wave antenna duplexer receiving data information, and is sent to microphone or computer by after the demodulation of shortwave duplex receiver; Or described data message is sent to after shortwave duplex receiver carries out modulation treatment is sent to short-wave transmitter, then carry out launching after power amplification through short-wave transmitter.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

Fig. 1 is that a kind of shortwave information photoelectricity of the present invention observes transmission system schematic diagram;

Fig. 2 is the structural representation of embodiment of the present invention intermediate waves full duplex central station and the far-end station;

Fig. 3 is receiving station's antenna arrangement schematic diagram in the embodiment of the present invention;

Fig. 4 is station antenna schematic layout pattern in cell site's in the embodiment of the present invention.

Embodiment

With reference to Fig. 1, for a kind of shortwave information photoelectricity of the present invention observes transmission system schematic diagram; A kind of shortwave information photoelectricity observes transmission system, it is characterized in that, comprise shortwave full duplex central station and the substation subnet that communicates, described shortwave full duplex central station comprises central station external equipment, receiving station, cell site, central station automatic antenna tuner, central station short wave communication controller; Described communication substation subnet comprises M the far-end station.

Described shortwave duplex receiver and described short-wave transceiver comprise digital signal processing unit respectively, and described digital signal processing unit is used for the optimum configurations of duplex communication to happen suddenly waveform modulated or demodulation techniques.

Wherein, described short-wave transmitter has 7, and each portion comprises 1 K interface input; Described shortwave duplex receiver has 8, and wherein one is for subsequent use, and other 7 comprise 1 K interface output respectively, and 7 K interface inputs are electrically connected 7 K interface outputs respectively, and each K interface is for connecting short-wave transmitter and shortwave duplex receiver.

Described receiving station short wave communication controller has 1, and this receiving station of short wave communication controller comprises 7 outputs; Described shortwave duplex receiver has 8, wherein the 8th as subsequent use, other 7 comprise 1 RS-422 interface respectively, in described 7 outputs, I output connects the RS-422 interface of I portion shortwave duplex receiver, I ∈ 1,2 ..., 7}; Described short-wave transceiver comprises a transmitting-receiving RS-422 interface, and described far-end short wave communication controller comprises a control output end, the described transmitting-receiving RS-422 interface of described control output end electrical connection.

Described short-wave antenna duplexer comprises an antenna input and 7 antenna output ends, described 7 shortwave duplex receiver comprise a rf inputs respectively, the input of described short-wave antenna duplexer is by shortwave three-wire type broad-band antenna electrical connection far-end automatic antenna tuner, and I antenna output end of described short-wave antenna duplexer is electrically connected the rf inputs of I portion shortwave duplex receiver.

Described short-wave transmitter has 7, and each short-wave transmitter comprises a radio-frequency (RF) output end; Described cell site automatic antenna tuner has 7, and wherein the input of I portion cell site's automatic antenna tuner connects the radio-frequency (RF) output end of I portion short-wave transmitter.

Described far-end short wave communication controller has 15, and described photoelectricity investigation equipment also has 15, and wherein the input of F far-end short wave communication controller is electrically connected the output of F photoelectricity investigation equipment, F ∈ 1,2 ..., 15}; Described short-wave transceiver has 15, each short-wave transceiver is a corresponding RS-422 transceiver interface and a transmitting-receiving I/O radio-frequency head respectively, the output of F far-end short wave communication controller is electrically connected the RS-422 transceiver interface of F short-wave transceiver, described far-end automatic antenna tuner has 15, the corresponding automatic input of each far-end automatic antenna tuner; The automatic input of F far-end automatic antenna tuner is electrically connected the transmitting-receiving I/O radio-frequency head of F short-wave transceiver.

Described shortwave duplex receiver also comprises receiver external equipment, and for receiving data information, described data message comprises voice messaging, image information or Word message; Described receiver external equipment is computer or microphone.

K interface in the present embodiment is a kind of single channel wireline interface formulated in Network Topology engineering specification, described shortwave information photoelectricity observes transmission system intermediate waves duplex receiver by wired mode access shortwave duplex transmitter, realizes controlling shortwave duplex transmitter transmitting data information and communicates with control command.Described K interface is used in communication technical field, requires respectively: communication medium adopts twisted-pair feeder, and line speed is 16kbit/s, transmission range reaches 8m, message transmission rate asynchronous system is 2.416kbit/s, and the method for synchronization is 9.6kbit/s, and communication mode adopts way communication.

In the embodiment of the present invention, RS-422 interface belongs to national standard, and data-signal adopts differential transfer mode, and peak transfer rate is 10Mb/s.

The network planning that shortwave information photoelectricity in the embodiment of the present invention observes transmission system is: the address Unified number of each far-end station in the M portion far-end station, and has uniqueness; Communication substation subnet in the present embodiment comprises 15 far-end stations, 1 full duplex transceiver that each far-end station in these 15 far-end stations comprises is unified enrolls a network, and defining a network address, described 15 far-end stations are identical respectively at a distance of the distance of shortwave full duplex central station.

The job stream of network journey that embodiment of the present invention shortwave information photoelectricity observes transmission system is: setting network initial condition and current class frequency respectively, 1 full duplex transceiver that each far-end station in described 15 far-end stations comprises and 15 the far-end stations communicated in substation, respectively in the current class frequency interscan of setting, described current class frequency is respectively the preset in advance of receiving station's short wave communication controller that receiving station comprises and the far-end short wave communication controller that the far-end station comprises, describedly in advance presetly can be divided into 2 ~ 3 groups by Various Seasonal or morning, noon and afternoon, each group in described 2 ~ 3 groups arranges 4 ~ 5 frequencies.

The Principle of Communication that embodiment of the present invention shortwave information photoelectricity observes transmission system is: observe transmission system network by described shortwave information photoelectricity, the observed information being distributed in 15 far-end stations corresponding position is separately sent to shortwave full duplex central station in real time automatically, realizes carrying out effective monitoring to the relevant range of described 15 far-end stations correspondence position separately; Realize shortwave full duplex central station to described 15 the far-end stations relevant range downlink unicast data of correspondence position or broadcast data separately simultaneously, thus support described unicast data or broadcast data issues, realize network management and control.

Embodiment of the present invention shortwave information photoelectricity observes the communication means of transmission system, transmission system is observed based on described shortwave information photoelectricity, described a kind of shortwave information photoelectricity observes transmission system, comprise: shortwave full duplex central station and the substation subnet that communicates, described shortwave full duplex central station comprises receiving station and cell site, and described receiving station comprises short-wave antenna duplexer, shortwave duplex receiver, receiving station's short wave communication controller; Described cell site comprises short-wave transmitter, cell site's automatic antenna tuner; Described communication substation subnet, comprise M the far-end station, described M the far-end station comprises photoelectronic reconnaissance equipment, short-wave transceiver, far-end automatic antenna tuner, far-end short wave communication controller respectively, described shortwave duplex receiver also comprises receiver external equipment, described receiver external equipment is used for receiving data information, and described data message comprises voice messaging, image information or Word message; The communication means that described a kind of shortwave information photoelectricity observes transmission system is divided into uplink communication to communicate with downlink, is specially:

Particularly, described shortwave duplex receiver also comprises K interface circuit, for carrying out pulse code modulation; Information and the control command after modulating after described modulation, be specially pcm audio data-signal and PCM control coding signal, described PCM coded data signal and PCM control coding signal are that the data message that receives of shortwave duplex receiver and control command are carried out pulse code modulation respectively by described K interface circuit and obtained; Then pcm audio code signal and PCM control coding signal are sent to short-wave transmitter respectively by twisted-pair feeder.

Described short-wave transmitter carries out power amplification respectively to the control command after the data message after modulation and modulation, be specially: be first by modulation after data message and modulation after control command be separately converted to base-band audio signal and base band control command, then respectively power amplification is carried out to base-band audio signal and base band control command.

Described shortwave duplex receiver also comprises receiver external equipment, and described receiver external equipment comprises microphone or computer, for receiving data information; Shortwave duplex receiver is by short-wave antenna duplexer receiving data information, also comprise: described microphone or computer receiving data information, shortwave duplex receiver by short-wave antenna duplexer receiving data information, and is sent to microphone or computer by after the demodulation of shortwave duplex receiver; Or described data message is sent to after shortwave duplex receiver carries out modulation treatment, be sent to short-wave transmitter by K interface, then carry out launching after power amplification through short-wave transmitter.

In the present embodiment, the Digital Signal Processing of shortwave duplex receiver application advanced person in the present age realizes Channel Digital, service digital, and the inside of shortwave duplex receiver is primarily of the first digital signal processing unit, the first Main Control Unit, the first radio frequency amplifier unit, first frequency synthesizer unit, first line switch unit, the first power supply K interface unit, the first audio frequency amplifier unit, the first anti-noise secret unit, the first external equipment composition.

First digital signal processing unit comprises four inputs, is respectively first input end, the second input, the 3rd input and four-input terminal, first frequency synthesizer unit comprises a frequency input, second frequency input and three frequency output terminals, first radio frequency amplifier comprises a radio-frequency (RF) output end, four rf inputs, is respectively the first rf inputs, the second rf inputs, the 3rd rf inputs and the 4th rf inputs, first line switch unit comprises three inputs and a preliminary election output, is respectively the 5th input, the 6th input, the 7th input, first audio frequency amplifier unit comprises two audio input ends and an audio output, is respectively the first audio input end and the second audio input end, anti-noise secret unit comprises the first anti-noise input, the second anti-noise input and the first anti-noise output, 5th input of the first short-wave antenna duplexer output electrical connection preselector unit, the preliminary election output of first line switch unit is electrically connected the first rf inputs of the first radio frequency amplifier unit, the radio-frequency (RF) output end of the first radio frequency amplifier is electrically connected the first anti-noise input of the first anti-noise secret unit, first anti-noise output of the first anti-noise secret unit is electrically connected the first input end of the first digital signal processing unit, first digital signal processing unit output is electrically connected the first audio input end of the first audio frequency amplifier unit, the audio output of the first audio frequency amplifier unit is electrically connected the first external equipment input, three frequency output terminals of first frequency synthesizer unit are electrically connected the second rf inputs of the first radio frequency amplifier respectively, second input of the 3rd rf inputs and the first digital signal processing unit.

First power supply K interface unit comprises 7 power output ends, be electrically connected the 3rd input of the first digital signal processing unit respectively, first Main Control Unit input, 4th rf inputs of the first radio frequency amplifier unit, the first frequency input of first frequency synthesizer unit, 6th input of first line switch unit, second audio input end of the first audio frequency amplifier unit and the second anti-noise input of the first anti-noise secret unit, make the first power supply K interface to the first digital signal processing unit, first Main Control Unit, first radio frequency amplifier unit, first frequency synthesizer unit, first line switch unit, first audio frequency amplifier unit and the first anti-noise secret unit provide power supply respectively.

First Main Control Unit comprises three outputs, be electrically connected the four-input terminal of the first digital signal processing unit, the second frequency input of first frequency synthesizer unit, the 7th input of first line switch unit respectively, the first master controller is made to complete communication between the first digital signal processing unit respectively, the frequency dividing ratio completing first frequency synthesizer unit send number, and completes and control the wave band of first line switch unit.

Shortwave duplex receiver receiving data information, be specially the first Main Control Unit receiving data information of shortwave duplex receiver inside, described data message comprises voice messaging, image information or Word message, described data message is called radiofrequency signal, and described radio signal transmission is carried out filtering process to first line switch unit, again the radiofrequency signal after filtering process is sent to the first radio frequency amplifier unit, simultaneously, first frequency synthesizer unit provides the first local oscillation signal and the second local oscillation signal to radio frequency amplifier unit, first radio frequency amplifier unit is to the radiofrequency signal after filtering process, first local oscillation signal and the second local oscillation signal carry out mixing successively, frequency-selecting and amplify after, obtain the intermediate-freuqncy signal of 500kHz, then the intermediate-freuqncy signal of described 500kHz is sent to the first anti-noise secret unit, first anti-noise secret unit carries out de-noising and anti-noise process successively to the intermediate-freuqncy signal of described 500kHz, obtain the intermediate-freuqncy signal after de-noising, again the intermediate-freuqncy signal after this de-noising is sent to the first digital signal processing unit and carries out demodulation process, obtain the filtering signal after demodulation, filtering signal after described demodulation comprises the data message after demodulation and the control command after demodulation, then the data message after demodulation is sent to the first audio amplification unit and carries out audio frequency amplification, obtain the data message after audio frequency amplification, data message after being amplified by audio frequency is again sent to the first external equipment and exports, control command after demodulation is sent to receiving station's short wave communication controller.

Particularly, described first digital signal processing unit, use digital signal processor (DigitalSignalProcessing, DSP) chip realize 500kHz analog intermediate frequency signal digitized processing, automatically control communication, frequency hopping, transfer of data, digitlization, and use shortwave burst waveform modulation-demodulation technique, realize the channel quality rapid evaluation between described shortwave full duplex central station and communication substation subnet, described shortwave duplex receiver has 8, wherein one is for subsequent use, and other 7 comprise 1 RS-422 interface respectively; Central station short wave communication controller comprises 7 RS-422 interfaces; Short-wave transceiver has 15, and each short-wave transceiver is a corresponding RS-422 interface respectively; Described far-end short wave communication controller has 15, the corresponding RS-422 interface of each far-end short wave communication controller; Central station completes signalling by the RS-422 interface of I portion short-wave receiver and I RS-422 interface of central station short wave communication controller, and communication substation completes signalling by the RS-422 interface of F short-wave transceiver and the RS-422 interface of F far-end short wave communication controller.Described short-wave transmitter has 7, and each short-wave transmitter comprises a K interface, and shortwave duplex receiver carries out data information transfer by the K interface unit of its inside and the K interface of short-wave transmitter.

Described first Main Control Unit, uses microprocessor (Advancedrisemachines, ARM) realize the self-inspection detection control of Receiver And Transmitter and receive filter wave band switching controls.

Described first radio frequency amplifier unit, mainly complete the frequency conversion of twice signal, the radiofrequency signal being 1.6 ~ 30MHz by frequency range transforms to the first intermediate-freuqncy signal that frequency is 45.5MHz, be two intermediate-freuqncy signals of 500kHz again to frequency by described first medium-frequency transformation, and complete amplification and the automatic growth control (automaticgaincontrol, AGC) of second intermediate-freuqncy signal of 500kHz.

Described first frequency synthesizer unit, primarily of Direct Digital Synthesizer (DirectDigitalSynthesizer, DDS) circuit produces the first local oscillation signal that the radio frequency amplifier unit in shortwave duplex receiver needs, second local oscillation signal and digital signal processor (DigitalSignalProcessing, DSP) master clock signal needed for unit, the frequency range of described first local oscillation signal is 47.1MHz ~ 75.4999MHz, described second local oscillation signal frequency is 46MHz, described first digital signal processor (DigitalSignalProcessing, DSP) clock signal needed for is 18.432MHz.

Described first line switch unit, the main unwanted signal using arrowband filtering radio-frequency front-end; First power supply K interface unit, comprise power supply and K interface, the first digital signal processing unit that main generation shortwave duplex receiver comprises, the first Main Control Unit, the first radio frequency amplifier unit, first frequency synthesizer unit, first line switch unit, the first audio frequency amplifier unit and the power supply needed for the first anti-noise secret unit, described K interface adopts special K interface chip to carry out multiplexing or demultiplexing to data message.

In the embodiment of the present invention, short-wave transmitter application present age, advanced Digital Signal Processing realized Channel Digital, the real-time control of power of application software algorithm realization, and the inside of described short-wave transmitter is primarily of selecting device unit, the second subrane filter cell, second source K interface unit, the second Power Amplifier Unit, the second external equipment composition after the second digital signal processing unit, the second Main Control Unit, the second radio frequency amplifier unit, second frequency synthesizer unit, second.

Second radio frequency amplifier unit comprises two radio frequencies and amplifies input digital signal input end; Second Main Control Unit comprises four control output ends, and be electrically connected respectively select device unit after second control input end, the control input end of the second subrane filter cell, the power control end of the second Power Amplifier Unit, the frequency control terminal of second frequency synthesizer unit; The output of second source K interface unit is electrically connected the input of the second digital signal processing unit, the output of the second digital signal processing unit is electrically connected the input of the second radio frequency amplifier unit, the input of device unit is selected after the output electrical connection second of the second radio frequency amplifier unit, the output of device unit is selected to be electrically connected the input of the second Power Amplifier Unit after second, the output of the second Power Amplifier Unit is electrically connected the input of the second subrane filter cell, and the output of the second subrane filter is electrically connected the second transmitter radio-frequency (RF) output end; Second frequency synthesizer unit comprises three frequency synthesis outputs, and two radio frequencies being electrically connected the second radio frequency amplifier unit respectively amplify a digital signal input end of input and the second digital signal processing unit.

Second Main Control Unit selects device unit and the second subrane filter cell to carry out wave band control respectively after second, second Main Control Unit carries out power control to the second Power Amplifier Unit, and the second Main Control Unit carries out frequency error factor control to second frequency controller unit.

Second source K interface unit comprises power supply and K interface circuit, this K interface circuit receives the data message after the audio frequency amplification launched from the first external equipment, and the control command after the demodulation of receiving station's short wave communication controller reception, data message after described audio frequency amplifies and the control command after demodulation are respectively through K interface circuit decoding process, export data decode signal and control decoding instruction, and by described data decode signal with control decoding instruction and be sent to the second digital signal processing unit respectively and carry out upconversion process, obtain 500kHz analog intermediate frequency signal, again described 500kHz analog intermediate frequency signal is sent to the second radio frequency amplifier unit, second frequency synthesizer unit provides the 3rd local oscillation signal and the 4th local oscillation signal to the second radio frequency amplifier unit, second radio frequency amplifier unit is to 500kHz intermediate-freuqncy signal, 3rd local oscillation signal and the 4th local oscillation signal carry out mixing successively, frequency-selecting and amplification, obtain the radiofrequency signal of launching, device unit is selected to carry out narrow-band filtering after the radiofrequency signal of described transmitting is sent to second, obtain the radiofrequency signal after narrow-band filtering, again the radiofrequency signal after narrow-band filtering is sent to the second Power Amplifier Unit, second Power Amplifier Unit carries out three grades of amplifications to the radiofrequency signal after narrow-band filtering, obtain rf power signal, finally described rf power signal is sent to the second subrane filter and carries out shaping filter, obtain the rf power signal after shaping filter, rf power signal after described shaping filter is sent to cell site's automatic antenna tuner by the second subrane filter cell, after cell site's automatic antenna tuner and antenna match, rf power signal after described shaping filter is sent to far-end automatic antenna tuner.

Particularly, described second digital signal processing unit, main use digital signal processor (DigitalSignalProcessing, DSP) chip completes the baseband signal after to the first Digital Signal Processing comprised from shortwave duplex receiver and processes, and produces the analog intermediate frequency signal of 500kHz; Described baseband signal comprises voice messaging, image information, Word message or control command.

Described second Main Control Unit, main application microprocessor (Advancedrisemachines, ARM) chip realizes tuning to the control antenna tuner of short-wave transmitter, to select device unit after second wave band and to switch and the power of the second Power Amplifier Unit controls, and completes the signaling-information transmission between shortwave duplex receiver and short-wave transmitter by K interface unit.

Described second radio frequency amplifier unit, mainly complete the frequency conversion of twice signal, namely frequency is that the analog intermediate frequency signal of 500kHz is transformed to the intermediate-freuqncy signal that frequency is 45.5MHz, and the intermediate-freuqncy signal being 45.5MHz by frequency transforms to the radiofrequency signal that frequency range is 1.6 ~ 30MHz, and the radiofrequency signal of this 1.6 ~ 30MHz is amplified and auto level control (ALC).

Described second frequency synthesizer unit, primarily of Direct Digital Synthesizer (DirectDigitalSynthesizer, DDS) circuit produces the 3rd local oscillation signal that the radio frequency amplifier unit in short-wave transmitter needs, 4th local oscillation signal and digital signal processor (DigitalSignalProcessing, DSP) master clock signal needed for unit, the frequency range of described 3rd local oscillation signal is 47.1MHz ~ 75.4999MHz, described 4th local oscillation signal frequency is 46MHz, described second digital signal processor (DigitalSignalProcessing, DSP) clock signal needed for unit is 18.432MHz.

Select device unit after described second, mainly arrowband filtering is carried out to the harmonic wave of radiofrequency signal launched and clutter.

Described second subrane filter cell, the unwanted signal of main filtering after the second Power Amplifier Unit, and harmonic signal is suppressed, described harmonic signal is through the useless second harmonic signal after the second Power Amplifier Unit or multiple harmonic signal.

Described second source K interface unit, i.e. power supply unit and K interface, the power supply that described power supply selects device unit, the second subrane filter cell, the second Power Amplifier Unit required separately after mainly producing the second digital signal processing unit that short-wave transmitter comprises, the second Main Control Unit, the second radio frequency amplifier unit, second frequency synthesizer unit, second, the data message after described K interface uses special K interface chip to amplify audio frequency and the control command after modulation carry out multiplexing or demultiplexing.

Described second Power Amplifier Unit, mainly amplifies the radiofrequency signal after narrow-band filtering, makes it to produce the power signal needed for short-wave transmitter, and described Power Amplifier Unit is made up of pre-amplifier, penultimate stage amplifier and final amplifier.

In the present embodiment, the contemporary state-of-the-art Digital Signal Processing of short-wave transceiver application realizes the real-time control of power of Channel Digital, service digital and application software algorithm realization, and device unit, the 3rd subrane filter cell, the 3rd audio frequency amplifier unit, the 3rd anti-noise unit, the 3rd Power Amplifier Unit, the 3rd external equipment composition are selected primarily of three digital signal processing unit, the 3rd Main Control Unit, the 3rd radio frequency amplifier unit, the 3rd frequency synthesizer unit, the 3rd prognosis in the inside of described short-wave transceiver.

Receive path: the 3rd radio frequency amplifier unit comprises two radio frequencies and amplifies input, 3rd frequency synthesizer unit comprises three frequency synthesis output ports and a frequency error factor control end, 3rd prognosis is selected device unit to comprise a prognosis and is selected wave band switching controls end, and the 3rd subrane filter cell comprises a subrane switching controls end, the input of output electrical connection the 3rd radio frequency amplifier unit of device unit is selected in 3rd prognosis, the input of output electrical connection the 3rd anti-noise unit of the 3rd radio frequency amplifier unit, the output of the 3rd anti-noise unit is electrically connected the input of three digital signal processing unit, the input of output electrical connection the 3rd audio frequency amplifier unit of three digital signal processing unit, the input of output electrical connection the 3rd frequency synthesizer unit of the 3rd audio frequency amplifier unit, three frequency synthesis output ports of the 3rd frequency synthesizer unit are electrically connected two radio frequencies amplification inputs of the 3rd radio frequency amplifier unit and the input end of clock of three digital signal processing unit respectively, 3 master control ends of the 3rd Main Control Unit are electrically connected the frequency error factor control end of the 3rd frequency synthesis unit respectively, 3rd prognosis selects the prognosis of device unit to select wave band switching controls end, the subrane switching controls end of the 3rd subrane filter cell.

Far-end automatic antenna tuner receives the rf power signal after described shaping filter, rf power signal after described shaping filter is 1.60000MHz ~ 29.99999MHz, and include voice messaging, image information, Word message, control command, then adjusting power interface unit to be sent to the 3rd prognosis by the 3rd day the rf power signal after described shaping filter selects device unit to carry out arrowband frequency-selecting, obtain the radiofrequency signal after arrowband frequency-selecting, and the radiofrequency signal after arrowband frequency-selecting is sent to the 3rd radio frequency amplifier unit, 3rd frequency synthesizer unit provides the 5th local oscillation signal and the 6th local oscillation signal to the 3rd radio frequency amplifier unit, 3rd radio frequency amplifier unit is to the radiofrequency signal after arrowband frequency-selecting, 5th local oscillation signal and the 6th local oscillation signal carry out mixing successively, frequency-selecting and amplification, obtain the intermediate-freuqncy signal of 500kHz, the intermediate-freuqncy signal of described 500kHz is sent to three digital signal processing unit, in three digital signal processing unit, successively modulus sampling is carried out to the intermediate-freuqncy signal of 500kHz, Digital Down Convert and demodulation, obtain the intermediate-freuqncy signal after demodulation process, intermediate-freuqncy signal after described demodulation process comprises the data message after demodulation process, control command after demodulation process, data message after demodulation process enters after the 3rd audio frequency amplifier unit amplifies and exports the 3rd external equipment to, control command after demodulation process exports far-end short wave communication controller to.

Send out path: the 3rd audio frequency amplifier unit output electrical connection the 3rd anti-noise unit input, 3rd anti-noise unit output is electrically connected three digital signal processing unit input, three digital signal processing unit output electrical connection the 3rd radio frequency amplifier unit input, device input is selected in 3rd radio frequency amplifier unit output electrical connection the 3rd prognosis, 3rd prognosis selects device output to be electrically connected the 3rd power amplification unit input, 3rd Power Amplifier Unit output electrical connection the 3rd subrane filter input end, the radio-frequency (RF) output end of the 3rd subrane filter output electrical connection short-wave transceiver.3rd frequency synthesis unit comprises a frequency synthesis switching controls end, 3rd prognosis selects device unit to comprise a pre-wave band switching controls end, 3rd subrane filter cell comprises a subrane switching controls port, 3rd radio frequency amplifier unit comprises two and launches frequency input terminal, 3rd frequency synthesizer unit comprises three synthesis outputs, three synthesis outputs of the 3rd frequency synthesizer unit are electrically connected two transmitting frequency input terminals of the 3rd radio frequency amplifier unit and the input end of clock of three digital signal processing unit respectively, 3rd Main Control Unit comprises three master control ports, and be electrically connected the frequency synthesis switching controls end of the 3rd frequency synthesis unit respectively, the pre-wave band switching controls end of device unit and the subrane switching controls port of the 3rd subrane filter cell are selected in 3rd prognosis.

Data message after the demodulation process that 3rd audio frequency amplifier unit reception the 3rd external equipment sends over, and first the data message after described demodulation process is carried out audio frequency amplification, obtain audio amplification signal, and then audio amplification signal is sent to three digital signal processing unit, data-signal is directly sent to three digital signal processing unit by the 3rd external equipment simultaneously, control command after demodulation process is sent to three digital signal processing unit by far-end short wave communication controller, three digital signal processing unit is modulated successively to the control command after audio amplification signal and demodulation process, after Digital Up Convert and digital-to-analogue conversion, what obtain 500KHz sends out intermediate-freuqncy signal, then the intermediate-freuqncy signal of sending out of 500KHz is fed through radio frequency amplifier unit.Simultaneously, 3rd frequency synthesizer unit provides the 7th local oscillation signal and the 8th local oscillation signal to the 3rd radio frequency amplifier unit, 3rd radio frequency amplifier unit is to an intermediate-freuqncy signal of 500kHz, 7th local oscillation signal and the 8th local oscillation signal carry out mixing successively, obtain sending out a radiofrequency signal after frequency-selecting and amplification, described transmitting frequently signal frequency range is 1.60000MHz ~ 29.99999MHz, 3rd prognosis selects device unit to carry out arrowband frequency-selective filtering to described radiofrequency signal, obtain the radiofrequency signal after arrowband frequency-selective filtering, 3rd Power Amplifier Unit carries out three grades of amplifications to the radiofrequency signal of sending out after described arrowband frequency-selective filtering, obtain rf power signal, 3rd subrane filter cell is sent to after carrying out filtering process to described rf power signal and enters the 3rd day tune power interface unit, and be sent to far-end automatic antenna tuner, after far-end automatic antenna tuner mates with antenna, by sky alignment space radiation.

Particularly, described three digital signal processing unit, main use digital signal processor (DigitalSignalProcessing, DSP) chip realizes modulation /demodulation or the Digital up and down convert of 500kHz intermediate-freuqncy signal, realize automatically controlling communication, frequency hopping, transfer of data, digitlization simultaneously, and and communication between communication controler and master controller.

Described 3rd Main Control Unit, main use microprocessor (Advancedrisemachines, ARM) chip realize controlling the self-inspection of short-wave transceiver, device unit is selected in the 3rd subrane filter and the 3rd prognosis wave band switching controls, the 3rd frequency synthesizer unit frequency error factor control and the power control of the 3rd Power Amplifier Unit, and completed the transmission of signaling-information by far-end short wave communication controller.

Described 3rd radio frequency amplifier unit mainly completes twice mixing, be specially: the second intermediate-freuqncy signal being 500kHz by frequency during transmitting is transformed to the first intermediate-freuqncy signal that frequency is 45.5MHz, and the first intermediate-freuqncy signal being 45.5MHz by frequency transforms to Up/Down Conversion that frequency range is the radiofrequency signal of 1.6 ~ 30MHz, the amplification of radiofrequency signal, automatic growth control (AGC) or auto level control (ALC); The radiofrequency signal being 1.6 ~ 30MHz by frequency range during reception is transformed to the intermediate-freuqncy signal that frequency is 45.5MHz, and the first IF signal frequency being 45.5MHz by frequency is the Up/Down Conversion of two intermediate-freuqncy signals of 500kHz, the amplification of radiofrequency signal, automatic growth control (AGC) or auto level control (ALC).

Described 3rd frequency synthesizer unit, primarily of Direct Digital Synthesizer (DirectDigitalSynthesizer, DDS) circuit produces the 7th local oscillation signal of the 3rd radio frequency amplifier unit needs comprised in short-wave transceiver, 8th local oscillation signal, also produce digital signal processor (DigitalSignalProcessing simultaneously, DSP) master clock signal needed for unit, the frequency range of described 7th local oscillation signal is 47.1MHz ~ 75.4999MHz, described 8th local oscillation signal frequency is 46MHz, described three digital signal processor (DigitalSignalProcessing, DSP) master clock signal needed for unit is 18.432MHz.

Device unit is selected in described 3rd prognosis, and main radio frequency signal carries out narrow-band filtering, filtering unwanted signal and harmonic signal.

Described 3rd subrane filter cell, the unwanted signal that main filtering or suppression produce after power amplifier or harmonic signal.

Described short-wave transceiver, also comprise sky and adjust power interface unit, described sky adjusts that power interface unit is respectively three digital signal processing unit, the 3rd Main Control Unit, the 3rd radio frequency amplifier unit, the 3rd frequency synthesizer unit, the 3rd prognosis select device unit, the 3rd subrane filter cell, the 3rd audio frequency amplifier unit, the 3rd anti-noise unit, the 3rd Power Amplifier Unit to power.

Described 3rd Power Amplifier Unit is made up of pre-amplifier, penultimate stage amplifier and final amplifier, and main radio frequency signal amplifies, and makes it to produce the power signal needed for transmitter;

In the present embodiment, short wave communication controller in shortwave full duplex central station, with the core node that the short wave communication controller I communicated in substation is described a kind of VOS shortwave information system, receiver, transmitter are organically linked together by RS-422 interface by the short wave communication controller in shortwave full duplex central station, receive simultaneously, process voice signal, data-signal or signaling-information that the far-end station sends over and issue signaling-information.

In the embodiment of the present invention, receiving station's power supply and cell site's power supply provide D.C. regulated power supply to respectively I portion shortwave duplex receiver, central station short wave communication controller and I portion short-wave transmitter I, mainly contain the 13.8V stabilized voltage power supply needed for shortwave duplex receiver I and the 24V stabilized voltage power supply needed for short-wave transmitter, and the 13.8V stabilized voltage power supply needed for short wave communication controller.

In the embodiment of the present invention, the effect of described short-wave antenna duplexer isolates the radiofrequency signal that the frequency range received is 1.6 ~ 30MHz or be separated, or be that the radiofrequency signal of 1.6 ~ 30MHz obtains baseband signal after Digital Signal Processing process by the frequency range received, this baseband signal comprises voice signal, data-signal or signaling-information; Because every portion shortwave duplex receiver can not adopt 1 pair of dipole antenna, so needing special equipment is that the radiofrequency signal of 1.6 ~ 30MHz carries out isolating or be separated to every portion shortwave duplex receiver by described frequency range; It is good that described short-wave antenna duplexer has isolation between road, the advantage that three rank section indexs are high.

With reference to Fig. 2, it is the structural representation of embodiment of the present invention intermediate waves full duplex central station and the far-end station; Central station external equipment in the present embodiment is peripheral earphone microphone equipment, audio signal is sent to shortwave duplex receiver by described peripheral earphone microphone equipment, shortwave duplex receiver receives the audio signal that described external equipment sends over, and described modulates audio signals is become baseband signal, more described baseband signal is sent to short-wave transmitter; Short-wave transmitter receives the baseband signal that described shortwave duplex receiver sends over, and becomes emission of radio frequency signals to go out described modulates baseband signals.

I portion shortwave duplex receiver receives described radiofrequency signal, and the described radiofrequency signal received is amplified and be converted to more than intermediate frequency 500kHz, and then is demodulated to the peripheral earphone microphone equipment that audio signal is sent in shortwave full duplex central station and exports.

Wherein, Fig. 3 is receiving station's antenna arrangement schematic diagram in the embodiment of the present invention; Fig. 4 is station antenna schematic layout pattern in cell site's in the embodiment of the present invention; Composition graphs 3, Fig. 4 can find out, in the principal element affecting short wave communication effect, dipole antenna is primary; Select a secondary dipole antenna that the Effective Radiated Power of short-wave radio set can be made even to become many times of increases at double.According to communication distance, communication direction (comprise directed or comprehensive), bear the difference of power, the kind of dipole antenna can have multiple choices; From in the world, use broad-band antenna to be fashion trend, structure be simple, erection is convenient this is because broad-band antenna has, need not sky tune, earth-free line, wide frequency range advantage.In the present embodiment, the dipole antenna of receiving station adopts novel three-wire type high efficiency and broad band antenna, considers omnibearing communication direction reception, by described novel three-wire type high efficiency and broad band antenna installation for falling " V " form.The dipole antenna of cell site selects 7 secondary dipole antennas, and in this 7 secondary dipole antenna, each secondary dipole antenna is 44m; Consider omnibearing communication direction reception, avoid the parallel erection of any two secondary dipole antenna in this 7 secondary dipole antenna.

The investigation data message of reception is converted to intermediate frequency 500kHz by I portion shortwave duplex receiver, and be demodulated to original investigation data message, then by RS-422 interface, described original investigation data message is sent to I RS-422 interface of short wave communication controller, described short wave communication controller receives investigation data-signal, and issue control command to shortwave duplex receiver according to investigation data-signal, shortwave duplex receiver receives described control command, and digital processing is carried out to described control command, obtain baseband signal, then described baseband signal is sent to short-wave transmitter, short-wave transmitter receives described baseband signal, and become emission of radio frequency signals to go out described modulates baseband signals, wherein, described investigation data message, is investigate equipment by the photoelectricity of the far-end station to be obtained by photoelectricity collection, then after carrying out power amplification by short-wave transceiver, is launched by far-end automatic antenna tuner.

Far-end station receiving and transmitting voice signal or data message realize respectively by short-wave transceiver, process is concentricity station, be specially: the voice signal that F portion short-wave transceiver receives or data message, be sent to digital signal processing unit after being amplified by the radio frequency amplifier unit of short-wave transceiver inside, F portion and carry out demodulation process, and voice messaging is sent to external equipment, as earphone microphone; Data message is sent to F portion far-end short wave communication controller, the voice signal that earphone microphone sends over by F portion short-wave transceiver or the data message that F portion far-end short wave communication controller sends over, the digital signal processing unit being sent to short-wave transceiver inside, F portion respectively carries out modulation treatment, and then successively after radio frequency amplifier unit, Power Amplifier Unit amplify, launched by far-end automatic antenna tuner.

In the present embodiment, the core devices of K interface or K interface unit is respectively FPGA, and Main Function is multiplex/demultiplex, is multiplexed into frame data by two paths of data signal and a road audio signal, then is sent to far-end by special teletransmission K interface device; Otherwise the frame data received by far-end are sent to corresponding terminal after carrying out demultiplexing respectively, its transmission rate is 80Kbit/s.Short wave communication controller adopts time division multiplexing (TDM) principle to complete the access of multiple signals ~ converge ~ pick out, wherein, access signal or the type picking out signal have two kinds, one is voice signal (300Hz ~ 3400Hz), one is high-speed data signal, and high-speed data signal speed is at below 4800bPs.

Technical scheme of the present invention achieves shortwave duplex communication, and constitutes huge communication network, to meet the needs of shortwave integrated information investigation communication.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention; Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. shortwave information photoelectricity observes a transmission system, and it is characterized in that, comprise shortwave full duplex central station and the substation subnet that communicates, described shortwave full duplex central station comprises receiving station, cell site; Described communication substation subnet comprises M the far-end station; M represents natural number;

Described receiving station comprises short-wave antenna duplexer, shortwave duplex receiver, receiving station's short wave communication controller;

Described short-wave antenna duplexer connects shortwave duplex receiver, receiving station's short wave communication controller successively, described shortwave duplex receiver connects short-wave transmitter, cell site's automatic antenna tuner successively, and described cell site automatic antenna tuner connects far-end automatic antenna tuner, short-wave transceiver, far-end short wave communication controller and photoelectronic reconnaissance equipment successively;

2. a kind of shortwave information photoelectricity as claimed in claim 1 observes transmission system, and it is characterized in that, described short-wave transmitter has 7, and each portion comprises 1 K interface input; Described shortwave duplex receiver has 8, and wherein one is for subsequent use, and other 7 comprise 1 K interface output respectively, and 7 K interface inputs are electrically connected 7 K interface outputs respectively, and each K interface is for connecting short-wave transmitter and shortwave duplex receiver.

3. a kind of shortwave information photoelectricity as claimed in claim 1 observes transmission system, it is characterized in that, described shortwave duplex receiver also comprises receiver external equipment, and for receiving data information, described data message comprises voice messaging, image information or Word message; Described receiver external equipment is computer or microphone.

4. a kind of shortwave information photoelectricity as claimed in claim 1 observes transmission system, it is characterized in that, described in be loaded with the long-distance transmissions of radiofrequency signal in setting range of control command, wherein setting range is 200km ~ 2000km.

5. the communication means of a shortwave information photoelectricity observation transmission system, transmission system is observed based on shortwave information photoelectricity, described shortwave information photoelectricity is observed transmission system and is comprised: shortwave full duplex central station and the substation subnet that communicates, described shortwave full duplex central station comprises receiving station and cell site, and described receiving station comprises short-wave antenna duplexer, shortwave duplex receiver, receiving station's short wave communication controller; Described cell site comprises short-wave transmitter, cell site's automatic antenna tuner; Described communication substation subnet, comprise M the far-end station, described M the far-end station comprises photoelectronic reconnaissance equipment, short-wave transceiver, far-end automatic antenna tuner, far-end short wave communication controller respectively, described shortwave duplex receiver also comprises receiver external equipment, described receiver external equipment is used for receiving data information, and described data message comprises voice messaging, image information or Word message; The communication means that described a kind of shortwave information photoelectricity observes transmission system is divided into uplink communication to communicate with downlink, is specially:

6. a kind of shortwave information photoelectricity as claimed in claim 5 observes the communication means of transmission system, and it is characterized in that, described shortwave duplex receiver also comprises K interface circuit, for carrying out pulse code modulation; Information and the control command after modulating after described modulation, be specially pcm audio data-signal and PCM control coding signal, described PCM coded data signal and PCM control coding signal are that the data message that receives of shortwave duplex receiver and control command are carried out pulse code modulation respectively by described K interface circuit and obtained.

7. a kind of shortwave information photoelectricity as claimed in claim 5 observes the communication means of transmission system, it is characterized in that, described short-wave transmitter carries out power amplification respectively to the control command after the data message after modulation and modulation, be specially: be first by modulation after data message and modulation after control command be separately converted to base-band audio signal and base band control command, then respectively power amplification is carried out to base-band audio signal and base band control command.