CN103532586A - Four-channel short wave receiving and sending unit based on Ethernet bus - Google Patents
Four-channel short wave receiving and sending unit based on Ethernet bus Download PDFInfo
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- CN103532586A CN103532586A CN201310321387.6A CN201310321387A CN103532586A CN 103532586 A CN103532586 A CN 103532586A CN 201310321387 A CN201310321387 A CN 201310321387A CN 103532586 A CN103532586 A CN 103532586A
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Abstract
Provided is a four-channel short wave receiving and sending unit based on an Ethernet bus. The four-channel short wave receiving and sending unit comprises a master control module, a frequency synthesis module, a front panel module, a power supply module, four receiving and sending integrated radio frequency modules and four channel modulation-demodulation modules. The frequency synthesis module is used for providing a clock signal to each channel modulation-demodulation module. The receiving and sending integrated radio frequency modules are used for processing the received short wave radio frequency signals so that intermediate frequency signals are generated. The master control module is connected with the frequency synthesis module, the front panel module, the four receiving and sending integrated radio frequency modules and the four channel modulation-demodulation modules in a signal connection way via the Ethernet bus. The master control module is coordinated with the front panel module so that operation and control towards the short wave receiving and sending unit are realized. Integration of receiving and stimulation of four short wave channels is realized by the four-channel short wave receiving and sending unit so that number and weight of short wave channel units in a large-scale short wave communication system can be reduced and size is reduced. Besides, the four-channel short wave receiving and sending unit is high in expandability, high in transmission rate and great in anti-interference performance.
Description
Technical field
The present invention relates to New Technology Of Shortwave Communication field, in particular to a kind of four-way shortwave Transmit-Receive Unit based on industry ethernet.
Background technology
Shortwave transmitting-receiving integrated RF module is one of key component of software radio communication platform, in traditional short wave channel unit, owing to adopting self-defining bus, extensibility is poor, reception and the incentive functions that can only realize single passage, applicability is low, and when carrying out transfer of data and information exchange, data transmission bauds is slow, is difficult to meet the demand of the short wave communication of development increasingly.
Summary of the invention
The object of the invention is to provide a kind of four-way shortwave Transmit-Receive Unit based on industry ethernet, realize the integrated of four shortwave passages receptions and excitation, thereby reduce the quantity and weight of large-scale Shortwave Communication System intermediate waves Channel Elements, reduce volume, and extensibility is strong, transmission rate is high, good in anti-interference performance.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is as follows:
A kind of four-way shortwave Transmit-Receive Unit based on industry ethernet, comprise main control module, frequency synthesis module, front panel module, power module, 4 transmitting-receiving integrated RF modules and 4 Channel Modulation demodulation modules, wherein: frequency synthesis module is used to each Channel Modulation demodulation module that clock signal is provided; Transmitting-receiving integrated RF module, for the short-wave radio frequency signal receiving is processed, produces intermediate-freuqncy signal; Main control module is connected with frequency synthesis module, front panel module, 4 transmitting-receiving integrated RF modules and 4 Channel Modulation demodulation module signals by industry ethernet, front panel module is used for providing man machine operation interface, and described main control module coordinates with front panel module to realize to be controlled the operation of shortwave Transmit-Receive Unit.
Further, described main control module is connected with industry ethernet by Ethernet chip LXT971AL, and control frequency synthesis module, Channel Modulation demodulation module, transmitting-receiving integrated RF module are monitored the state of each module simultaneously.
Further, described frequency synthesis module comprises internal oscillator, phase-locked loop, power splitter and frequency divider, produces universal timepiece frequency and special clock frequency.
Further, the input of described phase-locked loop can be selected a kind of in the signal of inner high precision oscillator and external timing signal.
Further, described transmitting-receiving integrated RF module comprises control circuit, radio-frequency (RF) receiving circuit and RF excited circuit, wherein: control circuit receives the control command of main control module by industry ethernet, and the state information of transmitting transceiver integrated RF module; Radio-frequency (RF) receiving circuit, for short-wave radio frequency signal is carried out to frequency-conversion processing, produces intermediate-freuqncy signal; RF excited circuit is for amplifying short-wave radio frequency signal and ripple processing.
Further, described control circuit adopts ATmega16L as kernel control chip, and communicates by Ethernet chip LXT971AL and industry ethernet, and ATmega16L kernel control chip is controlled radio-frequency (RF) receiving circuit and RF excited circuit by parallel port.
Further, described Channel Modulation demodulation module adopts zero intermediate frequency energisation mode to produce short-wave radio frequency small-signal, receives the intermediate-freuqncy signal that transmitting-receiving integrated RF module is sent simultaneously, and is demodulated to base-band digital audio signal, from industry ethernet, gives main control module.
Further, described Channel Modulation demodulation module comprise OMAP3530 control chip, FPGA modulation /demodulation process chip, A/D converter, upconversion process chip, down-converted chip and with for storing the EPCS16 chip of FPGA program, wherein: described A/D converter is AD9244 chip, described down-converted chip is HSP50216 chip, and described upconversion process chip is AD9957 chip.
From the above technical solution of the present invention shows that, the four-way shortwave Transmit-Receive Unit based on industry ethernet of the present invention can reduce the quantity and weight of large-scale Shortwave Communication System intermediate waves Channel Elements, reduces volume.And by adopting industry ethernet, making the extensibility of whole unit strong, transmission rate is high, good in anti-interference performance.
Accompanying drawing explanation
Fig. 1 is the module diagram of preferred embodiment of the present invention.
Fig. 2 is the principle schematic of frequency synthesis module.
Fig. 3 is the principle schematic of transmitting-receiving integrated RF module.
Fig. 4 is the principle schematic of Channel Modulation demodulation module.
Embodiment
In order more to understand technology contents of the present invention, especially exemplified by specific embodiment and coordinate appended graphic being described as follows.
As shown in Figure 1, according to preferred embodiment of the present invention, four-way shortwave Transmit-Receive Unit based on industry ethernet, comprise main control module, frequency synthesis module, front panel module, power module, 4 transmitting-receiving integrated RF modules and 4 Channel Modulation demodulation modules, wherein: frequency synthesis module is used to each Channel Modulation demodulation module that clock signal is provided; Transmitting-receiving integrated RF module, for the short-wave radio frequency signal receiving is processed, produces intermediate-freuqncy signal; Main control module is connected with frequency synthesis module, front panel module, 4 transmitting-receiving integrated RF modules and 4 Channel Modulation demodulation module signals by industry ethernet, front panel module is used for providing man machine operation interface, and described main control module coordinates with front panel module to realize to be controlled the operation of shortwave Transmit-Receive Unit.
In the present embodiment, described main control module is connected with industry ethernet by Ethernet chip LXT971AL, and control frequency synthesis module, Channel Modulation demodulation module, transmitting-receiving integrated RF module are monitored the state of each module simultaneously.
Front panel module is for friendly man machine operation interface is provided, and main control module and operation interface coordinate to realize to be controlled the operation of the shortwave Transmit-Receive Unit of the present embodiment.Main control module can load Windows or vxworks operating system.Main control software in operating system is responsible for demonstration and is controlled, and main control software is developed under Windows XP or under vxworks operating system.In different operating system, need to install different industry ethernet drivers.
Described frequency synthesis module provides the clock signal of four road signals.Shown in figure 2, frequency synthesis module comprises low-pass filter circuit, mixting circuit, intermediate frequency filtering circuit, intermediate frequency amplifier circuit, local oscillation circuit and single-chip microcomputer, this low-pass filter circuit is first made low-pass filtering treatment to the short-wave radio frequency signal of input, through mixting circuit mixing, become intermediate-freuqncy signal again, again by intermediate frequency filtering circuit, intermediate frequency amplifier circuit complete intermediate frequency filtering, gain amplifier is processed, wherein: the changing of single-chip microcomputer reception control circuit frequently ordered and be processed into frequency code and give local oscillation circuit, thereby produces the required local oscillation signal of mixing.Wherein, the input of phase-locked loop can be selected a kind of in the signal of inner high precision oscillator and external timing signal.
Local oscillation circuit and single-chip microcomputer adopt unified reference clock, to reduce the impact of clock on radio-frequency channel.
Shown in figure 3, transmitting-receiving integrated RF module comprises control circuit, radio-frequency (RF) receiving circuit and RF excited circuit, wherein: control circuit receives the control command of main control module by industry ethernet, and the state information of transmitting transceiver integrated RF module; Radio-frequency (RF) receiving circuit, for short-wave radio frequency signal is carried out to frequency-conversion processing, produces intermediate-freuqncy signal; RF excited circuit is for amplifying short-wave radio frequency signal and ripple processing.
Preferably, control circuit adopts ATmega16L as kernel control chip, and communicates by Ethernet chip LXT971AL and industry ethernet, and ATmega16L kernel control chip is controlled radio-frequency (RF) receiving circuit and RF excited circuit by parallel port.
In the present embodiment, radio-frequency (RF) receiving circuit is first made low-pass filtering treatment to the short-wave radio frequency signal of input, then becomes intermediate-freuqncy signal through mixing, then realizes intermediate frequency filtering, gain amplifier processing.RF excited circuit comprises for short-wave radio frequency signal being carried out to the bandwidth-limited circuit of filtering processing and amplifying the amplifying circuit of processing for signal, wherein bandwidth-limited circuit includes the filter of four wave bands and selects wave band by electronic switch, and the Ctrl2-Ctrl0 signal being provided by Atmega16L kernel control chip is controlled respectively each electronic switch.Electronic switch adopts BGS12A radio-frequency (RF) switch.Three negative feedback amplifier circuits of amplifying circuit provide respectively the gain of 0dB ,+12dB ,+12dB, and overall gain is+24dB that input and output impedance is 50 Ω.
In the present embodiment, described Channel Modulation demodulation module adopts zero intermediate frequency energisation mode to produce short-wave radio frequency small-signal, receive the intermediate-freuqncy signal that transmitting-receiving integrated RF module is sent simultaneously, and be demodulated to base-band digital audio signal, from industry ethernet, give main control module.
With reference to figure 4, in Channel Modulation demodulation module, comprise OMAP3530 control chip, FPGA modulation /demodulation process chip, A/D converter, upconversion process chip, down-converted chip and with for storing the EPCS16 chip of FPGA program.Wherein, OMAP3530 control chip is as the control core in whole module, and this chip fast operation, memory source enrich, and have the multiple advantages such as low-power consumption, stable performance.FPGA modulation /demodulation process chip adopts the Cyclone II FPGA of altera corp to realize modulation /demodulation and processes, this chip fast operation, and support high-speed-differential data, realize internal logic control, single-side band modulation, filtering processing.FPGA handling procedure is used Quartus II compiling to generate.A/D converter is AD9244 chip, and down-converted chip is HSP50216 chip, and upconversion process chip is AD9957 chip, and Ethernet chip is LXT971AL chip.
In sum, the four-way shortwave Transmit-Receive Unit based on industry ethernet of the present invention can reduce the quantity and weight of large-scale Shortwave Communication System intermediate waves Channel Elements, reduces volume.And by adopting industry ethernet, making the extensibility of whole unit strong, transmission rate is high, good in anti-interference performance.Therefore, may be used in multichannel shortwave integrated communications system, improve the integrated level of unit and the extensibility of module.
Although the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on claims person of defining.
Claims (8)
1. the four-way shortwave Transmit-Receive Unit based on industry ethernet, it is characterized in that, comprise main control module, frequency synthesis module, front panel module, power module, 4 transmitting-receiving integrated RF modules and 4 Channel Modulation demodulation modules, wherein: frequency synthesis module is used to each Channel Modulation demodulation module that clock signal is provided; Transmitting-receiving integrated RF module, for the short-wave radio frequency signal receiving is processed, produces intermediate-freuqncy signal; Main control module is connected with frequency synthesis module, front panel module, 4 transmitting-receiving integrated RF modules and 4 Channel Modulation demodulation module signals by industry ethernet, front panel module is used for providing man machine operation interface, and described main control module coordinates with front panel module to realize to be controlled the operation of shortwave Transmit-Receive Unit.
2. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 1, it is characterized in that, described main control module is connected with industry ethernet by Ethernet chip LXT971AL, control frequency synthesis module, Channel Modulation demodulation module, transmitting-receiving integrated RF module are monitored the state of each module simultaneously.
3. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 2, is characterized in that, described frequency synthesis module comprises internal oscillator, phase-locked loop, power splitter and frequency divider, produces universal timepiece frequency and special clock frequency.
4. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 3, is characterized in that, a kind of in the signal of inner high precision oscillator and external timing signal selected in the input of described phase-locked loop.
5. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 1, it is characterized in that, described transmitting-receiving integrated RF module comprises control circuit, radio-frequency (RF) receiving circuit and RF excited circuit, wherein: control circuit receives the control command of main control module by industry ethernet, and the state information of transmitting transceiver integrated RF module; Radio-frequency (RF) receiving circuit, for short-wave radio frequency signal is carried out to frequency-conversion processing, produces intermediate-freuqncy signal; RF excited circuit is for amplifying short-wave radio frequency signal and ripple processing.
6. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 5, it is characterized in that, described control circuit adopts ATmega16L as kernel control chip, and communicate by Ethernet chip LXT971AL and industry ethernet, ATmega16L kernel control chip is controlled radio-frequency (RF) receiving circuit and RF excited circuit by parallel port.
7. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 1, it is characterized in that, described Channel Modulation demodulation module adopts zero intermediate frequency energisation mode to produce short-wave radio frequency small-signal, receive the intermediate-freuqncy signal that transmitting-receiving integrated RF module is sent simultaneously, and be demodulated to base-band digital audio signal, from industry ethernet, give main control module.
8. the four-way shortwave Transmit-Receive Unit based on industry ethernet according to claim 7, it is characterized in that, described Channel Modulation demodulation module comprise OMAP3530 control chip, FPGA modulation /demodulation process chip, A/D converter, upconversion process chip, down-converted chip and with for storing the EPCS16 chip of FPGA program, wherein: described A/D converter is AD9244 chip, described down-converted chip is HSP50216 chip, and described upconversion process chip is AD9957 chip.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108282165A (en) * | 2017-12-25 | 2018-07-13 | 中国电子科技集团公司电子科学研究院 | A kind of wireless communication system architecture |
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| US20110111713A1 (en) * | 2009-11-12 | 2011-05-12 | Samsung Electronics Co. Ltd. | Apparatus and method for switching radio channel |
| CN103078671A (en) * | 2012-12-25 | 2013-05-01 | 熊猫电子集团有限公司 | Short-wave receiving-transmitting integration system based on delay diversity |
| CN203377875U (en) * | 2013-07-26 | 2014-01-01 | 熊猫电子集团有限公司 | Ethernet bus-based four-channel shortwave transmit-receive unit |
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Patent Citations (5)
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| CN1592164A (en) * | 2003-09-05 | 2005-03-09 | 南京理工科技园股份有限公司 | Ultra-short wave wideband data communication system |
| US20110111713A1 (en) * | 2009-11-12 | 2011-05-12 | Samsung Electronics Co. Ltd. | Apparatus and method for switching radio channel |
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| CN103078671A (en) * | 2012-12-25 | 2013-05-01 | 熊猫电子集团有限公司 | Short-wave receiving-transmitting integration system based on delay diversity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108282165A (en) * | 2017-12-25 | 2018-07-13 | 中国电子科技集团公司电子科学研究院 | A kind of wireless communication system architecture |
| CN108282165B (en) * | 2017-12-25 | 2021-08-17 | 中国电子科技集团公司电子科学研究院 | Wireless communication system architecture |
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Application publication date: 20140122 |