CN108199766A - A kind of spaceborne answering machine of goods-shelf type - Google Patents
A kind of spaceborne answering machine of goods-shelf type Download PDFInfo
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- CN108199766A CN108199766A CN201810307538.5A CN201810307538A CN108199766A CN 108199766 A CN108199766 A CN 108199766A CN 201810307538 A CN201810307538 A CN 201810307538A CN 108199766 A CN108199766 A CN 108199766A
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- module
- filter
- signal
- answering machine
- frequency
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18515—Transmission equipment in satellites or space-based relays
Abstract
The invention discloses a kind of spaceborne answering machine of goods-shelf type, including：RF receiving and transmission module, for reception and transmitting over the ground, to relaying radiofrequency signal；IF process module, for receiving the A/D of signal conversions, the D/A conversions of reference signal, the acquisition and tracking of pseudo-code and carrier wave, channel signal processing；Secondary power supply module performs for power filter, voltage conversion and answering machine switch；Duplexer, for observing and controlling radio frequency receiving signal over the ground and radio frequency transmissions filtering process；Relay reception wave filter, for relaying observing and controlling radio frequency receiving signal pre-selection filtering.The spaceborne answering machine of goods-shelf type of the present invention is set by changing different software using unified hardware platform, replaces the duplexer of different frequent points and relay reception wave filter, can reach General design, gone the purpose of model batch production and the goods-shelf type supply of material.
Description
Technical field
The invention belongs to Space TT＆C technical field more particularly to a kind of spaceborne answering machines of goods-shelf type.
Background technology
Answering machine has played abnormal important Link role in space flight measurement and control, receives ground uplink (before relaying to) remote control and believes
Number and distance measuring signal, complete demodulation, despreading, ranging, speed measuring function；Complete modulation, amplification, converting downlink telemetered signal and downlink
Measuring signal.
It was directed to the demand of different satellite model tasks in the past, different answering machines need to be customized, not only every cost is very high,
And lead time flow is also very long.Since answering machine belongs to traditional aerospace product, the various functions such as reception, transmitting are more solid
It is fixed, therefore unified hardware platform can be designed completely, answering machine is produced in batches, is matched by the software for changing different
It puts, make simple hardware configuration modification, you can meet the needs of different model satellite.
Invention content
Of the existing technology in order to solve the problems, such as, the present invention proposes a kind of spaceborne answering machine of goods-shelf type.
The technical solution adopted in the present invention is：
A kind of spaceborne answering machine of goods-shelf type, including：
RF receiving and transmission module, for reception and transmitting over the ground, to relaying radiofrequency signal；
IF process module, for receiving the D/A conversions of the A/D of signal conversions, reference signal, pseudo-code and the capture of carrier wave
Tracking, channel signal processing；
Secondary power supply module performs for power filter, voltage conversion and answering machine switch；
Duplexer, for observing and controlling radio frequency receiving signal over the ground and radio frequency transmissions filtering process；
Relay reception wave filter, for relaying observing and controlling radio frequency receiving signal pre-selection filtering.
Preferably, the RF receiving and transmission module includes trunking traffic radio-frequency channel and over the ground communication radio frequency channel, in described
It is connect after communication radio frequency channel and the channel of communication radio frequency over the ground with the IF process module.
Preferably, in the trunking traffic radio-frequency channel：Relay reception wave filter, the first low noise amplification module, the first radio frequency
Wave filter, the first down conversion module, the first intermediate-frequency filter, the first amplification/AGC modules, the first amplification module, the filter of the second intermediate frequency
Wave device, the IF process module, the first reference filter, the second amplification module, the first local oscillator module, the first power splitter,
Three amplification modules, first transmitting modulation module and the first emission filter be sequentially connected, and first power splitter with it is described
First down conversion module connects, and the IF process module connect with the first baseband filter, first baseband filter and
The first transmitting modulation module connection.
Preferably, in the channel of communication radio frequency over the ground：Duplexer, the second low noise amplification module, the second radio-frequency filter,
It is two down conversion modules, third intermediate-frequency filter, the second amplification/AGC modules, the 4th amplification module, the 4th intermediate-frequency filter, described
IF process module, the second reference filter, the 5th amplification module, the second local oscillator module, the second power splitter, the 6th amplification mould
Block, the second transmitting modulation module, the second emission filter and power amplifier module are sequentially connected, and second power splitter with it is described
Second down conversion module connects, and the power amplifier module connect with the duplexer, the second baseband filter respectively with the intermediate frequency
Processing module is connected with the described second transmitting modulation module, third baseband filter respectively with the IF process module and described
Second transmitting modulation module connection.
Preferably, the IF process module includes Base-Band Processing FPGA, monitoring FPGA, A/D conversion circuit, D/A conversions
Circuit and interface circuit, the Base-Band Processing FPGA is for observing and controlling over the ground, the fast Acquisition of relaying observing and controlling and channel signal processing；
The monitoring FPGA is used to complete the real-time refresh process of the monitoring and key parameter of the Base-Band Processing FPGA working conditions；Institute
A/D conversion circuits are stated for carrying out A/D conversions to the intermediate-freuqncy signal from RF receiving and transmission module, the digital signal of generation is sent
To the Base-Band Processing FPGA；The D/A conversion circuits are used to carry out D/A to the digital signal from the Base-Band Processing FPGA
Conversion, RF receiving and transmission module is sent to by the intermediate-freuqncy signal of generation；The interface circuit be used between integrated electronics module into
Row remote control, telemetered signal send and receive.
Preferably, the RF receiving and transmission module, IF process module and the secondary power supply module are common hardware mould
Block.
Preferably, it is hung on answering machine box body outside the duplexer and the relay reception wave filter.
Compared with prior art, the beneficial effects of the invention are as follows：
The spaceborne answering machine of goods-shelf type proposed by the present invention has the characteristics that generalization, integration, miniaturization, lightness, adopts
With double reception channel, double transmission channels, common numbers base band form, realize over the ground observing and controlling and relaying observing and controlling function；
For the demand of different model satellite, the spaceborne answering machine of goods-shelf type of the invention uses unified hardware platform, leads to
It crosses and changes different software configurations, replacing has the different filtering duplexers of frequency point and relay reception wave filter, you can reaches logical
With the purpose of design of change；
The design method of the present invention can be applied to designing and developing for the similar unit product of aerospace model, not only can be effective
Shorten the answering machine product design and development period, and can reduce answering machine product designs and develops cost.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is the spaceborne answering machine composition frame chart of goods-shelf type of one embodiment of the invention；
Fig. 2 is the RF receiving and transmission module frequency flow chart of one embodiment of the invention；
Fig. 3 is the IF process module composition frame chart of one embodiment of the invention；
Fig. 4 is the secondary power supply module composition frame chart of one embodiment of the invention；
Fig. 5 is the duplexer outline dimensional drawing of one embodiment of the invention；
Fig. 6 is the relay reception filter shape dimensional drawing of one embodiment of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention
The mode of applying is explained in detail.
As shown in Figure 1, a kind of spaceborne answering machine of goods-shelf type, including：
RF receiving and transmission module, for reception and transmitting over the ground, to relaying radiofrequency signal；
IF process module, for receiving the D/A conversions of the A/D of signal conversions, reference signal, pseudo-code and the capture of carrier wave
Tracking, channel signal processing；
Secondary power supply module performs for power filter, voltage conversion and answering machine switch；
Duplexer, for observing and controlling radio frequency receiving signal over the ground and radio frequency transmissions filtering process；
Relay reception wave filter, for relaying observing and controlling radio frequency receiving signal pre-selection filtering.
As shown in Fig. 2, RF receiving and transmission module uses superhet Frequency Conversion Design, lead to including trunking traffic radio-frequency channel and over the ground
Believe radio-frequency channel, trunking traffic radio-frequency channel and communication radio frequency channel is connect with IF process module over the ground.
In trunking traffic radio-frequency channel：Relay reception wave filter, the first low noise amplification module, the first radio-frequency filter, first
Down conversion module, the first intermediate-frequency filter, the first amplification/AGC modules, the first amplification module, the second intermediate-frequency filter, at intermediate frequency
Manage module, the first reference filter, the second amplification module, the first local oscillator module, the first power splitter, third amplification module, first
Transmitting modulation module and the first emission filter are sequentially connected, and the first power splitter is connect with the first down conversion module, intermediate frequency
Processing module is connect with the first baseband filter, and the first baseband filter is connect with the first transmitting modulation module.
Over the ground in communication radio frequency channel：Duplexer, the second low noise amplification module, the second radio-frequency filter, the second down coversion mould
Block, third intermediate-frequency filter, the second amplification/AGC modules, the 4th amplification module, the 4th intermediate-frequency filter, IF process module,
Second reference filter, the 5th amplification module, the second local oscillator module, the second power splitter, the 6th amplification module, the second transmitting modulation
Module, the second emission filter and power amplifier module are sequentially connected, and the second power splitter is connect with the second down conversion module, power amplifier
Module is connect with duplexer, and the second baseband filter is connect respectively with IF process module and the second transmitting modulation module, third
Baseband filter is connect respectively with IF process module and the second transmitting modulation module.
Wherein local oscillator reference signal f0And f0It ' is generated by IF process module, frequency synthesizer of phase locking is to local oscillator reference signal
Frequency multiplication is carried out, generates the local frequency of receiving branch and transmitting branch.
The spaceborne answering machine of this goods-shelf type uses same temperature compensating crystal oscillator to be exported as unique frequency reference to IF process
Module, for stable sinusoidal signal, as fpga chip, the work clock of ADC and DDS processors.Setting configuration parameter, through 2
Road DAC processors export 2 tunnel local oscillator reference frequency f0And f0', f0To radio-frequency module over the ground as uplink, the frequency reference of downlink
Carry out phase locking frequency multiplying processing, f0' to relaying radio-frequency module as preceding to reversed frequency reference carries out phase locking frequency multiplying processing.
As shown in figure 3, IF process module includes Base-Band Processing FPGA, monitoring FPGA, A/D conversion circuit, D/A conversion electricity
Road and interface circuit, Base-Band Processing FPGA is for observing and controlling over the ground, the fast Acquisition of relaying observing and controlling and channel signal processing；Monitoring
FPGA is used to complete the monitoring of Base-Band Processing FPGA working conditions and the real-time refresh process of key parameter；A/D conversion circuits are used
In carrying out A/D conversions to the intermediate-freuqncy signal from RF receiving and transmission module, the digital signal of generation is sent to Base-Band Processing FPGA；
D/A conversion circuits are used to carry out D/A conversions to the digital signal from Base-Band Processing FPGA, and the intermediate-freuqncy signal of generation is sent to
RF receiving and transmission module；Interface circuit is used to being remotely controlled between integrated electronics module, telemetered signal sends and receives.
As shown in figure 4, secondary power supply module includes fuse, electromagnetic interface filter, relay switch and DC/DC modular converters,
It is main to complete the functions such as power filter, voltage conversion and answering machine switch execution.
As shown in figure 5, the outline dimensional drawing for goods-shelf type answering machine duplexer of the present invention, duplexer are placed in answering machine cavity
Outside, have the function of transmitting-receiving unification, complete to answering machine RF receiving and transmission module over the ground observing and controlling radio frequency receiving signal and over the ground observing and controlling penetrate
It takes place frequently and penetrates the function of signal filtering process.
As shown in fig. 6, the outline dimensional drawing for the spaceborne answering machine relay reception wave filter of goods-shelf type of the present invention, relay reception
Wave filter is equally placed in outside answering machine cavity, is realized to the relaying observing and controlling radio frequency receiving signal pre-selection filter of answering machine RF receiving and transmission module
The function of wave.
It is hung on answering machine box body outside duplexer and relay reception wave filter, it can be according to the different frequency point of various model satellites
It is required that being replaced, corresponding filtering frequency point is made it have to meet the needs of different model satellite.
The operation principle of the spaceborne answering machine of goods-shelf type of the present invention is as follows：
When answering machine works, primary power source is through needed for secondary power supply module generation RF receiving and transmission module, IF process module
Various working powers.Meanwhile as instruction interface, secondary power supply module, which receives, instructs and completes corresponding electrical interface conversion.
After device power-on, the temperature compensating crystal oscillator in RF receiving and transmission module is exported to IF process module, and Gao Wencan is provided for it
Clock is examined as baseband processing chip and the work clock of ADC.IF process module generates reference frequency to radio frequency by DDS and receives
Module is sent out, after phase locking frequency multiplying, generates receiving branch local oscillation signal and transmitting branch carrier signal.
Reception antenna receives uplink remote signal and uplink distance measurement signals (over the ground), and radio-frequency channel is transmitted to through high-frequency feed line
Receiving branch, filtered, amplification and down-converted, output analog if signal to IF process module.
Under the sampling clock control provided in RF receiving and transmission module, the ADC module acquisition analog intermediate frequency of IF process module
Receive signal, output digital medium-frequency signal to baseband processing chip.Then to comprising remote control and uplink distance measurement signals (over the ground) into
The capture and tracking of row carrier wave and pseudo-code.Complete remote signal carrier wave, pseudo-code, data bit tracking and locking after, extract number
According to bit synchronization pulse, data demodulation is completed, and solution adjusting data is transmitted to together with bit synchronization pulse by difference RS422 standard interfaces
Integrated electronics.The tracking lock state and channel of uplink distance measurement signals are handled using the failing edge of downlink ranging frame-synchronizing impulse
As a result it is sampled, loop-locking state, carrier Doppler frequency, data bit counting, the pseudo-code for obtaining uplink distance measurement signals are all
Issue, pseudo-code phase, pseudo-code CHIP phases, the integer multiples of carrier wave, carrier phase and uplink distance measurement signals signal-to-noise ratio.It will be upper
Information is stated by downlink ranging frame is formed after certain format framing, is exported after spread spectrum and gives radio-frequency channel transmitting branch.Receive comprehensive electricity
The telemetry intelligence (TELINT) of sub- subsystem input exports after spread spectrum and gives radio-frequency channel transmitting branch.
Radio-frequency channel transmitting branch receives base band ranging spread-spectrum signal and the base band telemetering spread spectrum that IF process module provides
Signal carries out BPSK modulation, Direct conversion to radio frequency, the filtered amplification of modulated signal to the local oscillation signal that local oscillator branch generates
After send to transmitting antenna.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (7)
1. a kind of spaceborne answering machine of goods-shelf type, which is characterized in that including：
RF receiving and transmission module, for reception and transmitting over the ground, to relaying radiofrequency signal；
IF process module, for receive the D/A conversions of the A/D of signal conversions, reference signal, the capture of pseudo-code and carrier wave with
Track, channel signal processing；
Secondary power supply module performs for power filter, voltage conversion and answering machine switch；
Duplexer, for observing and controlling radio frequency receiving signal over the ground and radio frequency transmissions filtering process；
Relay reception wave filter, for relaying observing and controlling radio frequency receiving signal pre-selection filtering.
2. the spaceborne answering machine of a kind of goods-shelf type according to claim 1, which is characterized in that the RF receiving and transmission module includes
Trunking traffic radio-frequency channel and over the ground communication radio frequency channel, the trunking traffic radio-frequency channel and the communication radio frequency channel over the ground
It is connect with the IF process module.
A kind of 3. spaceborne answering machine of goods-shelf type according to claim 2, which is characterized in that the trunking traffic radio-frequency channel
In：Relay reception wave filter, the first low noise amplification module, the first radio-frequency filter, the first down conversion module, the first intermediate frequency filtering
Device, the first amplification/AGC modules, the first amplification module, the second intermediate-frequency filter, the IF process module, the first reference filtering
Device, the second amplification module, the first local oscillator module, the first power splitter, third amplification module, the first transmitting modulation module and the first hair
It penetrates wave filter to be sequentially connected, and first power splitter is connect with first down conversion module, the IF process module
It is connect with the first baseband filter, first baseband filter is connect with the described first transmitting modulation module.
A kind of 4. spaceborne answering machine of goods-shelf type according to claim 3, which is characterized in that the communication radio frequency channel over the ground
In：Duplexer, the second low noise amplification module, the second radio-frequency filter, the second down conversion module, third intermediate-frequency filter, second are put
Greatly/AGC modules, the 4th amplification module, the 4th intermediate-frequency filter, the IF process module, the second reference filter, the 5th are put
Big module, the second local oscillator module, the second power splitter, the 6th amplification module, the second transmitting modulation module, the second emission filter and
Power amplifier module is sequentially connected, and second power splitter is connect with second down conversion module, the power amplifier module and institute
Duplexer connection is stated, the second baseband filter is connect respectively with the IF process module and the second transmitting modulation module,
Third baseband filter is connect respectively with the IF process module and the second transmitting modulation module.
5. the spaceborne answering machine of a kind of goods-shelf type according to claim 1, which is characterized in that the IF process module includes
Base-Band Processing FPGA, monitoring FPGA, A/D conversion circuit, D/A conversion circuits and interface circuit, the Base-Band Processing FPGA are used for
Observing and controlling, the fast Acquisition of relaying observing and controlling and channel signal processing over the ground；The monitoring FPGA is used to complete the Base-Band Processing
The monitoring of FPGA working conditions and the real-time refresh process of key parameter；The A/D conversion circuits are used for coming from radio-frequency receiving-transmitting
The intermediate-freuqncy signal of module carries out A/D conversions, and the digital signal of generation is sent to the Base-Band Processing FPGA；The D/A conversions
Circuit is used to carry out D/A conversions to the digital signal from the Base-Band Processing FPGA, and the intermediate-freuqncy signal of generation is sent to and is penetrated
Frequency transceiver module；The interface circuit is used to being remotely controlled between integrated electronics module, telemetered signal sends and receives.
6. a kind of spaceborne answering machine of goods-shelf type according to claim 1, which is characterized in that the RF receiving and transmission module, in
Frequency processing module and the secondary power supply module are common hardware module.
7. the spaceborne answering machine of a kind of goods-shelf type according to claim 1, which is characterized in that the duplexer and the relaying
It is hung on answering machine box body outside receiving filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307538.5A CN108199766B (en) | 2018-04-08 | 2018-04-08 | Goods shelf type satellite-borne transponder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810307538.5A CN108199766B (en) | 2018-04-08 | 2018-04-08 | Goods shelf type satellite-borne transponder |
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| Publication Number | Publication Date |
|---|---|
| CN108199766A true CN108199766A (en) | 2018-06-22 |
| CN108199766B CN108199766B (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810307538.5A Active CN108199766B (en) | 2018-04-08 | 2018-04-08 | Goods shelf type satellite-borne transponder |
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| CN108988931A (en) * | 2018-06-26 | 2018-12-11 | 上海卫星工程研究所 | Satellite TT coprocessor |
| CN109765527A (en) * | 2018-12-11 | 2019-05-17 | 中国人民解放军63921部队 | A kind of S frequency range multi-channel high-accuracy space flight ranging answering machine |
| CN110266349A (en) * | 2019-07-11 | 2019-09-20 | 上海航天测控通信研究所 | A kind of Small Universal double frequency continuous wave answering machine |
| CN110808770A (en) * | 2019-09-25 | 2020-02-18 | 西安空间无线电技术研究所 | Integrated measurement and control terminal |
| CN111431581A (en) * | 2020-03-27 | 2020-07-17 | 上海航天测控通信研究所 | Radio frequency receiving and transmitting satellite-borne device based on anti-radiation microwave integrated circuit |
| CN111478726A (en) * | 2020-05-27 | 2020-07-31 | 中国科学院微小卫星创新研究院 | Communication system for small communication satellite |
| CN114710192A (en) * | 2022-03-11 | 2022-07-05 | 中国科学院国家空间科学中心 | Satellite-borne heaven-sea relay communication system and method applied to low-earth satellite |
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| CN111431581A (en) * | 2020-03-27 | 2020-07-17 | 上海航天测控通信研究所 | Radio frequency receiving and transmitting satellite-borne device based on anti-radiation microwave integrated circuit |
| CN111478726A (en) * | 2020-05-27 | 2020-07-31 | 中国科学院微小卫星创新研究院 | Communication system for small communication satellite |
| CN114710192A (en) * | 2022-03-11 | 2022-07-05 | 中国科学院国家空间科学中心 | Satellite-borne heaven-sea relay communication system and method applied to low-earth satellite |
| CN114710192B (en) * | 2022-03-11 | 2023-11-17 | 中国科学院国家空间科学中心 | Satellite-borne space-sea relay communication system and method applied to low-orbit satellite |
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|---|---|
| CN108199766B (en) | 2021-11-26 |
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