CN103067326A - Telemetering and data transmission integrated transmitter - Google Patents
Telemetering and data transmission integrated transmitter Download PDFInfo
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- CN103067326A CN103067326A CN2012105272111A CN201210527211A CN103067326A CN 103067326 A CN103067326 A CN 103067326A CN 2012105272111 A CN2012105272111 A CN 2012105272111A CN 201210527211 A CN201210527211 A CN 201210527211A CN 103067326 A CN103067326 A CN 103067326A
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Abstract
Provided is a telemetering and data transmission integrated transmitter. The whole transmitter comprises a carrier wave generator (phase lock frequency doubling way), a phase modulation circuit (analog phase modulation), an amplifier, a data transmission modulator (binary phase shift keying (BPSK) modulation), a filter, a separator, and the like. a frequency reference enters a phase-locked loop, and transmitted carrier waves are obtained through the phase lock frequency doubling way. All telemetering data is subjected to phase modulation through the phase modulation circuit to obtain downlink signals of the telemetering transmitter, and the downlink signals enter the data transmission modulator after being amplified in amplitude. A series design way is adopted to the data transmission modulator and a telemetering modulator. When telemetering data exists, no data transmitted data is input, and the transmitter is used as a telemetering transmitter. When data transmission modulation is carried out, no data exists at an input end of the phase modulation circuit, and the transmitter is used as a data transmission transmitter. The telemetering and data transmission integrated transmitter realizes the integration design of telemetering and digital transmission.
Description
Technical field
The present invention relates to spaceborne communication transmitter design, particularly a kind of remote measurement passes integrated transmitter design with number.
Background technology
Consider the particularity of satellite operational environment, its communication modulation system is selected simulation phase modulation or digital phase moudlation usually.Dual mode is phase modulation, and the former generally is used for the modulation of the analog signals such as telemetry parameter, sidetone, is referred to as the remote measurement modulation, and the latter is mainly used in the modulation that number passes data, is called number and passes modulation.Its transmitter is called telemetering transmiter when the satellite launch remote measurement, and its transmitter was called several transmission transmitters when the emission number passed.
Generally, telemetering transmiter belongs to tracking-telemetry and command subsystem, effect is some telemetry parameters of transmitting distance measuring signal and system, be convenient to ground station to real-time tracking and the control of satellite, and the number transmission transmitter belongs to data transmission subsystem, and effect is that some significant datas that payload on the satellite produces are emitted to ground station, for the designer, because data volume is mostly huger, generally select the digital phase moudlation mode of high bit rate.Along with the space technology development, consider emission and operating cost, most of satellites are combined into a subsystem with tracking-telemetry and command subsystem and data transmission subsystem, be referred to as the observing and controlling data transmission subsystem, topmost purpose is to simplify system, reduces weight and power consumption, thereby reduces cost.
In the observing and controlling data transmission subsystem, difference based on traditional design theory and modulation system, telemetering transmiter and number transmission transmitter are separately in function, two units independently, independently two section's covers or section cover the inside two parts independently of unit the inside, in essence from original working method without any different, can not bring considerable improvement for the volume power consumption of satellite yet.For realizing that observing and controlling number truly passes integrated, need telemetering transmiter and the integrated design of number transmission transmitter, only have the serial design of employing mode, the quantity that shares most functions minimizing components and parts and module at link could realize falling weight and the purpose that subtracts power consumption.
Do not find at present explanation or the report of technology similar to the present invention, not yet collect both at home and abroad similarly data yet.
Summary of the invention
For reaching the purpose of further reduction observing and controlling data transmission subsystem weight and power consumption, need to the object of the present invention is to provide a kind of remote measurement and number to pass integrated transmitter design method telemetering transmiter and the integrated design of number transmission transmitter.Utilize the present invention, can in the situation that does not reduce original two transmitter function indexs, effectively reduce weight and the power consumption of observing and controlling data transmission subsystem, simplicity of design simultaneously, be easy to integrated, highly versatile, suitable application area is wide.
In order to reach the foregoing invention purpose, the present invention is that the technical scheme that its technical problem of solution adopts provides a kind of remote measurement and the integrated transmitter design of number biography, and this design comprises:
Mode by phase locking frequency multiplying produces carrier wave, carrier wave enters phase modulation circuit again telemetry is carried out phase modulation, output telemetering transmiter data pass modulator (countless biography data inputs this moment) through amplifier to number, export antenna to finally by wave filter, isolator, realize the telemetering transmiter function, the function that realizes the number transmission transmitter data phase modulation (without the telemetry input) that do not take remote measurement when then carrier wave is through phase modulation circuit through behind the transmitting chain, is realized number transmission transmitter function.Phase locking frequency multiplying reference input source has three kinds: VCXO, temperature compensating crystal oscillator, constant-temperature crystal oscillator, three kinds of crystal oscillator output frequencies are different, wherein one the tunnel enter phase-locked loop by instruction control.Emission carrier wave and receiver upstream frequency be concerned with (receiver phase-locked situation under) when being input as VCXO, emission carrier wave and receiver upstream frequency are incoherent when being input as temperature compensating crystal oscillator, and emission carrier wave and receiver upstream frequency are irrelevant when being input as constant-temperature crystal oscillator.Transmitter is used for range finding when relevant, comprise the unidirectional range finding of sidetones ranging and Relative Difference, transmitter is used for the emission telemetry when incoherent, these two kinds of situations are the telemetering transmiter function, transmitter is the number transmission transmitter when being input as constant-temperature crystal oscillator, this moment, the frequency stability of carrier wave was very high, can effectively reduce number and pass the error rate, and transmitter is the number transmission transmitter.
Remote measurement modulator and number pass modulator and adopt the serial mode level to be associated in the same link, and when being operated in telemetering state, number passes the countless certificates of modulator input, and when being operated in several biography state, remote measurement modulator input is without the ac modulation data.
Emission mode is selected to realize that by pulse command control magnetic latching relay control mode is simple, need not to use microwave switch and microwave combiner, avoids the difficulty of bringing at the microwave frequency band designing institute.
The method for designing that the present invention adopts, it is consistent that the indexs such as its Data Modulation degree, the linearity, frequency spectrum symmetry, the error rate, power output, spuious inhibition and original separate unit telemetering transmiter and separate unit are counted transmission transmitter, and obtained that volume is little, lightweight, low in energy consumption, cost is low, design simplification, the simple texts of interface.
The present invention can be applied to all needs the observing and controlling number to pass in the middle of the satellite of integrated design.
Description of drawings
Fig. 1 is that a kind of remote measurement of the present invention passes integrated transmitter design block diagram with number.
Embodiment
Referring to the accompanying drawing that the embodiment of the invention is shown, hereinafter the present invention will be described in more detail.Yet the present invention can be with many multi-form realizations, and should not be construed as the restriction of the embodiment that is subjected in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes those skilled in the art understand scope of the present invention fully.In these accompanying drawings, for clarity sake, may amplify size and the relative size in layer and zone.
Accompanying drawing 1 passes integrated transmitter design block diagram for a kind of remote measurement of the present invention and number, and as shown in Figure 1, a kind of remote measurement passes integrated transmitter with number, comprises at least:
Phase locking frequency multiplying unit (adopting in this example existing phase-locking frequency multiplication circuit 16): be used for producing carrier wave by the phase locking frequency multiplying mode, and receive several phase locking frequency multiplying reference input source;
Phase modulation unit (adopting in this example existing phase modulation circuit 18): connect respectively phase locking frequency multiplying unit and telemetry input;
Number passes modulator 20: connect the phase modulation unit or be connected to the phase modulation unit by amplifier 19, and linking number passes data input pin;
Filter unit (adopting in this example filter 22): linking number passes modulator;
Isolated location (adopting in this example isolator 23): connect filter unit, its output is exported as transmitter;
And described emission function selectively is operated under the following wherein pattern:
The first pattern: the carrier wave of phase locking frequency multiplying mode produces, carrier wave enters the phase modulation unit again telemetry is carried out phase modulation, output telemetering transmiter signal through amplifier 19 to number pass modulator 20 but and countless biography data, finally by crossing filter unit, isolated location output, to realize telemetering transmiter;
The second pattern: the carrier wave data phase modulation that do not take remote measurement during through the phase modulation unit, directly pass through transmitting chain after, to realize the number transmission transmitter.
In this transmitter, phase locking frequency multiplying reference input source has three kinds: VCXO 11, temperature compensating crystal oscillator 12,14, three kinds of crystal oscillator output frequencies differences of constant-temperature crystal oscillator wherein one the tunnel enter phase-locked loop by instruction control.Emission carrier wave and receiver upstream frequency are relevant when being input as VCXO 11, and emission carrier wave and receiver upstream frequency are incoherent when being input as temperature compensating crystal oscillator 12, and emission carrier wave and receiver upstream frequency are irrelevant when being input as constant-temperature crystal oscillator 14.
Transmitter is used for range finding when relevant, comprises the unidirectional range finding of sidetones ranging and Relative Difference, and transmitter is used for launching various telemetries when incoherent, and these two kinds of situations all belong to the telemetering transmiter function.Transmitter is the number transmission transmitter when being input as constant-temperature crystal oscillator 14, and this moment, the frequency stability requirement of carrier wave was very high, and this moment, transmitter was the number transmission transmitter.
Three kinds of crystal oscillators can be used for phase-lockedly being operated in the output that different mode is then selected a certain crystal oscillator with reference to selecting, and descending carrier is only with wherein one the tunnel relevant.To required microwave frequency, advantage is that volume is little to mode by phase locking frequency multiplying with reference to frequency translation, and output frequency is controlled flexibly, can realize preferably spuious inhibition by rear class filtering, and the while also has preferably phase noise index.Carrier wave at first enters phase modulator, and its power is about 0dBm, and the about 10dB of attenuation when phase modulator is worked is 10dBm through being amplified into the front power of number biography modulation, and through the rear class decay, finally power output is about 0dBm.According to different system requirements, can be behind transmitter the cascade power amplifier, perhaps directly export through antenna.
The telemetry highest frequency is 20MHz, and low-limit frequency is 16KHz, and modulation bandwidth is wider, and frequency times journey is large, and is high to the modulator linearity, need add direct voltage during actual the use, makes it be operated in the best zone of the linearity.
When using number to pass, the direct voltage size of phase modulator control end is consistent when launching with remote measurement, and when using remote measurement, the direct voltage size that number passes modulator 20 ends need to be adjusted to desired value, makes two kinds of mode powers of final output consistent.
Remote measurement passes integrated transmitter design with number, this design comprises that the carrier wave of phase locking frequency multiplying mode produces, carrier wave enters phase modulation circuit 18 again telemetry is carried out phase modulation, output telemetering transmiter signal passes countless biography data modulator 20(this moment through amplifier 19 to number), export antenna to finally by wave filter 22, isolator 23, realize the telemetering transmiter function.Owing to adopt the serial design mode, the function that realize the number transmission transmitter data phase modulation (without the telemetry input) that do not take remote measurement when then carrier wave is through phase modulation circuit through behind the transmitting chain, is realized number transmission transmitter function.
Emission mode is selected to be undertaken by pulse command control magnetic latching relay (such as accompanying drawing 1), and control mode is simple and reliable, does not need to use microwave switch and microwave combiner, effectively reduces the microwave frequency band design difficulty.
When being operated in telemetering state, number passes the countless certificates of modulator 20 inputs, and power output is the same when passing emission for maintenance with number, and number biography modulated terminal is loaded with DC level.When being operated in several biography state, remote measurement modulator input is without the ac modulation data, but direct voltage is arranged, and carrier power passes behind the modulator 20 consistent with telemetering transmiter through number.
It is phase locking frequency multiplying that remote measurement passes integrated transmitter design carrier wave the way of production with number, maximum advantage is that volume is little, output frequency is controlled flexibly, transmits can finish humorous, the noise signal of elimination through rear class filter 22, and final stage uses isolator 23 to improve the output signal standing wave.And, remote measurement is shared by link with the integrated transmitter design of number biography, the modulator serial is used and realized integrated design, at least save phase-locking frequency multiplication circuit 16, amplifier 19, filter 22, isolator 23, also avoid simultaneously rear class to use mixer (perhaps switch), greatly reduce transmitter volume, weight and power consumption.In addition, the link rear class is used band pass filter 22, the about 50MHz of bandwidth, telemetering transmiter and number transmission transmitters all in being with, the effective humorous clutter of filtering transmitter.
In sum, the present invention has simple in structure, the characteristics that are easy to realize, and have very strong versatility, can be widely used in various observing and controlling numbers and pass in the middle of the integrated satellite model.
The research of this area and designer can pass integrated transmitter design to a kind of remote measurement of the present invention and number and carry out various changes and variation and do not break away from essential scope of the present invention.Like this, if these changes of the present invention and variation belong within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and changes interior.
Claims (7)
1. a remote measurement passes integrated transmitter with number, it is characterized in that, comprises at least:
Phase locking frequency multiplying unit: be used for producing carrier wave by the phase locking frequency multiplying mode, and receive different frequency phase locking frequency multiplying reference input source;
Phase modulation unit: connect respectively phase locking frequency multiplying unit and telemetry input;
Number passes modulator: connect the phase modulation unit or be connected to the phase modulation unit by amplifier, and linking number passes data input pin;
Filter unit: linking number passes modulator;
Isolated location connects filter unit, and its output is exported as transmitter;
And described transmitter selectively is operated under the following wherein pattern:
The first pattern: the carrier wave of phase locking frequency multiplying mode produces, carrier wave enters the phase modulation unit again telemetry is carried out phase modulation, output telemetering transmiter signal through amplifier to number pass modulator but and countless biography data, finally by crossing filter unit, isolated location output, to realize telemetering transmiter;
The second pattern: the data phase modulation that do not take remote measurement during carrier wave process phase modulation unit directly passes modulation through the laggard line number of transmitting chain, to realize the number transmission transmitter.
2. a kind of remote measurement as claimed in claim 1 passes integrated transmitter with number, it is characterized in that, described phase locking frequency multiplying reference input source has three kinds: VCXO, temperature compensating crystal oscillator, constant-temperature crystal oscillator, three kinds of crystal oscillator output frequencies are different, wherein one the tunnel enter phase-locked loop by instruction control, and, emission carrier wave and receiver upstream frequency are relevant when incoming frequency is the VCXO generation, emission carrier wave and receiver upstream frequency are incoherent when incoming frequency is the temperature compensating crystal oscillator generation, and emission carrier wave and receiver upstream frequency are irrelevant when incoming frequency is the constant-temperature crystal oscillator generation.
3. a kind of remote measurement according to claim 2 passes integrated transmitter with number, it is characterized in that, described transmitter is in under the pattern of finding range when relevant, it comprises sidetones ranging and the unidirectional range finding of Relative Difference, transmitter is in be used under the pattern of launching various telemetries when incoherent, and these two kinds of situations all belong to the telemetering transmiter pattern.
4. a kind of remote measurement as claimed in claim 2 passes integrated transmitter with number, it is characterized in that, transmitter was the number transmission transmitter when described phase locking frequency multiplying reference input source was input as constant-temperature crystal oscillator, and its transmitter is the number transmission transmitter.
5. a kind of remote measurement as claimed in claim 1 passes integrated transmitter with number, it is characterized in that phase modulation unit and telemetry input junction are provided with for receiving the remote measurement pulse command and open the relay of its input;
Number biography modulator passes the data input pin junction with number and is provided with for receiving number biography pulse command and opening the relay of its input.
6. according to claim 1 a kind of remote measurement passes integrated transmitter with number, it is characterized in that it is operated under the telemetering state, and number passes the countless certificates of modulator input, and power output is the same when keeping passing emission with number, and number biography modulated terminal is loaded with DC level.
7. according to claim 1 a kind of remote measurement passes integrated transmitter with number, it is characterized in that it is operated under several biography states, remote measurement modulator input is without the ac modulation data, but direct voltage is arranged, consistent with telemetering transmiter behind the carrier power process number biography modulator.
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| CN201210527211.1A CN103067326B (en) | 2012-12-10 | 2012-12-10 | A kind of remote measurement passes integrated transmitter with number |
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| CN201210527211.1A CN103067326B (en) | 2012-12-10 | 2012-12-10 | A kind of remote measurement passes integrated transmitter with number |
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| CN103067326B CN103067326B (en) | 2015-10-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944631A (en) * | 2014-05-13 | 2014-07-23 | 上海航天电子通讯设备研究所 | Miniature satellite-borne X-band data transmission launcher based on SIP (system in package) technology |
| CN106506032A (en) * | 2016-11-24 | 2017-03-15 | 江西洪都航空工业集团有限责任公司 | A kind of peace control remote measurement integration general module |
| CN110324077A (en) * | 2019-07-05 | 2019-10-11 | 上海航天测控通信研究所 | A kind of spaceborne dual-mode transmitter |
| CN111131929A (en) * | 2019-12-16 | 2020-05-08 | 上海卫星工程研究所 | Spacecraft measurement and control data transmission signal processing and data distribution device and communication method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944631A (en) * | 2014-05-13 | 2014-07-23 | 上海航天电子通讯设备研究所 | Miniature satellite-borne X-band data transmission launcher based on SIP (system in package) technology |
| CN103944631B (en) * | 2014-05-13 | 2018-01-30 | 上海航天电子通讯设备研究所 | A kind of miniature spaceborne X-band number based on sip technique passes emitter |
| CN106506032A (en) * | 2016-11-24 | 2017-03-15 | 江西洪都航空工业集团有限责任公司 | A kind of peace control remote measurement integration general module |
| CN110324077A (en) * | 2019-07-05 | 2019-10-11 | 上海航天测控通信研究所 | A kind of spaceborne dual-mode transmitter |
| CN111131929A (en) * | 2019-12-16 | 2020-05-08 | 上海卫星工程研究所 | Spacecraft measurement and control data transmission signal processing and data distribution device and communication method thereof |
| CN111131929B (en) * | 2019-12-16 | 2021-11-16 | 上海卫星工程研究所 | Spacecraft measurement and control data transmission signal processing and data distribution device and communication method thereof |
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| CN103067326B (en) | 2015-10-14 |
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