CN201839277U - Single-channel receiver of ground station - Google Patents
Single-channel receiver of ground station Download PDFInfo
- Publication number
- CN201839277U CN201839277U CN2010206066137U CN201020606613U CN201839277U CN 201839277 U CN201839277 U CN 201839277U CN 2010206066137 U CN2010206066137 U CN 2010206066137U CN 201020606613 U CN201020606613 U CN 201020606613U CN 201839277 U CN201839277 U CN 201839277U
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- input
- filter
- amplifier
- channel receiver
- ground station
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Abstract
The utility model provides a single-channel receiver of a ground station, relating to the field of microwave communication and electronic equipment and aiming at solving the technical problems that the traditional single-channel receiver of the ground station is low in sensitivity and less in functions and has no self-detection function and the like. The single-channel receiver is characterized in that the input end of an isolating amplitude limiter (1) is connected with the input of an antenna low-noise amplifier, and the output end of the isolating amplitude limiter is connected with a first input end of the low-noise amplifier (2), a filter I (3), an amplifier I (4) and a filter II (5) in series and in sequence, and then is connected with one input end of a frequency mixer (7); the output end of a local oscillation circuit (6) is connected with another input end of the frequency mixer (7); the output end of the frequency mixer (7) is connected with an amplifier II (9), a filter IV (10), a video detector (11) and a video amplifier (12) in series and in sequence, and then outputs video signals outwards; the output end of a self-detection video generator (13) is connected with a second input end of the low-noise amplifier (2), and the input/output end of the self-detection video generator (13) is connected with a digital processor (14) in series and then is connected to the input/output end of the video detector (11).
Description
Technical field
The utility model relates to microwave communication, electronic device field, particularly a kind of ground station single-channel receiver.
Background technology
Ground station's single-channel receiver is the crucial part in the communication system; for the protection whole system stable, operating accuracy is high, require usually ground station's single-channel receiver have highly sensitive, characteristics such as self-checking function, operating temperature range are wide, good stability are arranged.
And common on the market ground station's single-channel receiver is mainly continued to use traditional design at present, and there are the following problems with not enough:
1. sensitivity is not high;
2. function is few;
3. there is not self-checking function.
Summary of the invention
The utility model is intended to solve that the single-channel receiver sensitivity of traditional ground station is not high, function is few, do not have technical problems such as self-checking function, so that a kind of ground station's single-channel receiver that highly sensitive, wide dynamic range, band suppress, have characteristics such as self-checking function, operating temperature range are wide, good stability outward that has to be provided.
The purpose of this utility model is achieved through the following technical solutions.
Ground station of the present utility model single-channel receiver, the input of isolating amplitude limiter 1 connects the input of antenna low noise amplifier, first input end, filter 1, amplifier 1, filter 25 backs that its output is connected in series low noise amplifier 2 in turn link to each other with an input of frequency mixer 7, the output of local oscillation circuit 6 connects another input of frequency mixer 7, and the output of frequency mixer 7 is connected in series outwards outputting video signal of amplifier 29, filter 4 10, vision signal detector 11, the video amplifier 12 backs in turn; The output of self-test signal generator 13 connects second input of low noise amplifier 2, and its input/output terminal serial connection digital processing unit 14 backs connect the input/output terminal of vision signal detector 11.
Ground station of the present utility model single-channel receiver, the wherein said video amplifier 12 outputs are three the tunnel, connect Video Detection joint, digital processing unit 14 and DC-62P joint respectively.
Ground station of the present utility model single-channel receiver, wherein said filter 1 and filter 25 are the radio frequency intermediate-frequency filter.
Ground station of the present utility model single-channel receiver, the specified output frequency of wherein said frequency mixer 7 is 60MHz.
Ground station of the present utility model single-channel receiver, wherein said vision signal detector 11 is AD8310.
The beneficial effect of the utility model ground station single-channel receiver: highly sensitive, wide dynamic range, band suppress, have self-checking function, wide, the good stability of operating temperature range outward.
Description of drawings
Fig. 1 circuit theory diagrams of the present utility model
The number in the figure explanation:
1 isolates amplitude limiter, 2 low noise amplifiers, 3 filters one, 4 amplifiers one, 5 filters two, 6 local oscillation circuits, 7 frequency mixers, 8 filters three, 9 amplifiers two, 10 filters four, 11 vision signal detectors, 12 video amplifiers, 13 self-test signal generators, 14 digital processing units
Embodiment
The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1, are illustrated by following execution mode.
Ground station of the present utility model single-channel receiver, the input of isolating amplitude limiter 1 connects the input of antenna low noise amplifier, first input end, filter 1, amplifier 1, filter 25 backs that its output is connected in series low noise amplifier 2 in turn link to each other with an input of frequency mixer 7, the output of local oscillation circuit 6 connects another input of frequency mixer 7, and the output of frequency mixer 7 is connected in series outwards outputting video signal of amplifier 29, filter 4 10, vision signal detector 11, the video amplifier 12 backs in turn; The output of self-test signal generator 13 connects second input of low noise amplifier 2, and its input/output terminal serial connection digital processing unit 14 backs connect the input/output terminal of vision signal detector 11.
The video amplifier 12 outputs are three the tunnel, connect Video Detection joint, digital processing unit 14 and DC-62P joint respectively.
Below the utility model is described in further detail:
The signal that antenna receives enters this receiver through external low noise amplifier, at first by coupler 13, isolator 14 and amplitude limiter 1, sends into low noise amplifier 2 and amplifies.Signal after the amplification enters filter filtering clutter, and signal and local oscillation circuit 6 mixing then obtain the intermediate-freuqncy signal of 60MHz.Intermediate-freuqncy signal enters video processor after handling through amplification filtering, and the demodulated video signal amplifies the back and divides three tunnel outputs: the one road to the output of Video Detection joint, and the second the tunnel enters digital processing unit 14, and Third Road is by the 22 pin output of DC-62P joint.
Self-test signal generator 13 mainly is the radiofrequency signal that produces an ASK modulation (modulation code is produced by the user or inside modules produces), and its carrier frequency is identical with operating frequency.It is made up of PLL phase-locked loop, ASK modulator.
Video processor is made up of vision signal detector 11, the video amplifier 12 and video driver circuit.Vision signal detector 11(AD8310) to the demodulation of intermediate frequency ASK modulation signal, the vision signal after the demodulation is divided three tunnel outputs through the video amplifier 12 backs.
External LNA connection detection circuit mainly connects situation (open circuit, short circuit, normal) to external LNA and judges.
Through experimental verification, single-channel receiver of ground station of the present utility model, have highly sensitive, wide dynamic range, Out-of-band rejection good, many advantages such as self-checking function, operating temperature range are wide, good stability are arranged.
Claims (5)
1. ground station's single-channel receiver, it is characterized in that: the input of isolating amplitude limiter (1) connects the input of antenna low noise amplifier, its output is connected in series the first input end of low noise amplifier (2) in turn, filter one (3), amplifier one (4), filter two (5) backs link to each other with an input of frequency mixer (7), the output of local oscillation circuit (6) connects another input of frequency mixer (7), and the output of frequency mixer (7) is connected in series amplifier two (9) in turn, filter four (10), vision signal detector (11), the video amplifier (12) back is outputting video signal outwards; The output of self-test signal generator (13) connects second input of low noise amplifier (2), and its input/output terminal serial connection digital processing unit (14) back connects the input/output terminal of vision signal detector (11).
2. ground station as claimed in claim 1 single-channel receiver is characterized in that: the described video amplifier (12) output is three the tunnel, connects Video Detection joint, digital processing unit (14) and DC-62P joint respectively.
3. ground station as claimed in claim 1 single-channel receiver is characterized in that: described filter one (3) and filter two (5) are the radio frequency intermediate-frequency filter.
4. ground station as claimed in claim 1 single-channel receiver is characterized in that: the specified output frequency of described frequency mixer (7) is 60MHz.
5. ground station as claimed in claim 1 single-channel receiver is characterized in that: described vision signal detector (11) is AD8310.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206066137U CN201839277U (en) | 2010-11-15 | 2010-11-15 | Single-channel receiver of ground station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206066137U CN201839277U (en) | 2010-11-15 | 2010-11-15 | Single-channel receiver of ground station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839277U true CN201839277U (en) | 2011-05-18 |
Family
ID=44009378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206066137U Expired - Fee Related CN201839277U (en) | 2010-11-15 | 2010-11-15 | Single-channel receiver of ground station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973624A (en) * | 2014-04-28 | 2014-08-06 | 北京遥测技术研究所 | Satellite Ka-frequency-band receiving channel based on single-pulse 0/pi modulating |
-
2010
- 2010-11-15 CN CN2010206066137U patent/CN201839277U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973624A (en) * | 2014-04-28 | 2014-08-06 | 北京遥测技术研究所 | Satellite Ka-frequency-band receiving channel based on single-pulse 0/pi modulating |
| CN103973624B (en) * | 2014-04-28 | 2018-03-09 | 北京遥测技术研究所 | The receiving channel that a kind of star is modulated with Ka frequency ranges based on the π of pulse 0/ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20161115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |