CN103560801A - Satellite-bone low-noise 13-channel V wave band receiver - Google Patents
Satellite-bone low-noise 13-channel V wave band receiver Download PDFInfo
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- CN103560801A CN103560801A CN201310557007.9A CN201310557007A CN103560801A CN 103560801 A CN103560801 A CN 103560801A CN 201310557007 A CN201310557007 A CN 201310557007A CN 103560801 A CN103560801 A CN 103560801A
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Abstract
The invention provides a satellite-bone low-noise 13-channel V wave band receiver which comprises a polarization selection feed source, a V wave band low-noise amplifier, a mixer, a frequency separator, an intermediate frequency processing unit, a detector circuit and a low frequency processing unit. The polarization selection feed source receives noise signals and separates H polarization components from the noise signals, the V wave band low-noise amplifier and the polarization selection feed source are connected and conduct low-noise amplification on the input H polarization components and then output the H polarization components to the mixer, the mixer conducts down-conversion on the input signals to generate intermediate frequency signals, the frequency separator and the mixer are connected to separate the intermediate frequency signals into 13 kinds of different intermediate frequency signals which are amplified and filtered by the intermediate frequency processing unit and integrated and amplified by the detector circuit and the low frequency processing unit respectively, and specific noise information is acquired. The satellite-bone low-noise 13-channel V wave band receiver is high in integration level, small in size, weight and power consumption, and very suitable for satellite-bone application.
Description
Technical field
The present invention relates to a kind of satellite-borne microwave atmospheric temperature detecting receiver for radiometer, particularly a kind of spaceborne low noise 13 passage V-band receivers.
Background technology
Satellite-borne microwave radiometer is a kind of passive microwave remote sensing device, its function be from satellite platform to earth observation, obtain geophysical parameters, be applied to weather forecast and climatological research.Receiver is the core component of radiometer, and it has determined the important indicator such as receive frequency, bandwidth, sensitivity, the linearity, the time of integration of radiometer.
V-band receiver is mainly used in 50-60GHz atmosphere temperature profile survey meter.This detection frequency range is 50.3GHz-57.290344GHz, comprising 13 discrete detection channels.Conventionally in application, according to frequency and a plurality of receivers of frequency band selection, realize the reception work of 13 passages, cause the repetition of channel setting.For spaceborne application, produced quality, volume, the excessive situation of power consumption, caused the waste of satellite resource; Meanwhile, because a plurality of receivers must configure a plurality of feeds, thereby the homology of detection data can not be well guaranteed, for later stage application, a lot of difficulties and workload can be caused.
Summary of the invention
The invention provides a kind of spaceborne low noise 13 passage V-band receivers, it comprises polarization selection feed, V-band low noise amplifier, frequency mixer, frequency separator, IF processing unit, detecting circuit and low frequency processing unit;
Described polarization selects feed receive noise signal and from described noise signal, isolate H polarization components, described V-band low noise amplifier is selected feed to be connected and the H polarization components of input is carried out to low noise amplification and export to described frequency mixer with described polarization, described frequency mixer will produce intermediate-freuqncy signal after the signal down-conversion of input, described frequency separator is connected with described frequency mixer and described intermediate-freuqncy signal is separated into 13 tunnel different center frequency, the intermediate-freuqncy signal of different bandwidth, described 13 tunnel intermediate-freuqncy signals are amplified and filtering by IF processing unit respectively, detecting circuit detection, low frequency processing unit integration and amplification, obtain specific noise information.
Preferably, between described V-band low noise amplifier and described frequency mixer, be connected with an image-reject filter, described image-reject filter is for a sideband of filtering double-sideband signal.
Preferably, between described frequency mixer and described frequency separation selector, be provided with a pre-IF amplifier.
Preferably, described 13 tunnel intermediate-freuqncy signals comprise 9 single-side belt intermediate-freuqncy signals and 4 double-side band intermediate-freuqncy signals.
Preferably, the IF processing unit of described single-side belt intermediate-freuqncy signal comprises the first intermediate frequency amplifier, filter and the second intermediate frequency amplifier connecting successively.
Preferably, the IF processing unit of described double-side band intermediate-freuqncy signal comprises the 3rd intermediate frequency amplifier, the power splitter connecting successively, the two filter being connected with two outputs of described power splitter respectively, the 4th intermediate frequency amplifier being connected with described two filter respectively, the 5th intermediate frequency amplifier, and the synthesizer being connected with described the 4th intermediate frequency amplifier, the 5th intermediate frequency amplifier respectively.
Preferably, described detecting circuit comprises a wave detector.
Preferably, described low frequency processing unit comprises a low frequency amplifier.
Spaceborne low noise 13 passage V-band receivers provided by the invention have been realized the function of 13 receivers, and level of integrated system is high, and volume, weight and power consumption are all very little simultaneously, are highly suitable for spaceborne application.By its design, 13 receive paths are shared to a feed, make 13 passages can observe same target simultaneously, realized the complete homology of data, be conducive to the application in later stage.
Certainly, implement arbitrary product of the present invention and might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
The spaceborne low noise 13 passage V-band receiver system block diagrams that Fig. 1 provides for the embodiment of the present invention;
The single-side belt intermediate-freuqncy signal that this embodiment of the present invention of Fig. 2 provides is implemented block diagram;
The double-side band intermediate-freuqncy signal enforcement block diagram that Fig. 3 provides for the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention provides a kind of spaceborne low noise 13 passage V-band receivers, and as shown in Figure 1, it comprises polarization selection feed, V-band low noise amplifier, frequency mixer, frequency separator, IF processing unit, detecting circuit and low frequency processing unit;
Described polarization selects feed receive noise signal and from described noise signal, isolate H polarization components, described V-band low noise amplifier is selected feed to be connected and the H polarization components of input is carried out to low noise amplification and export to described frequency mixer with described polarization, described frequency mixer will produce intermediate-freuqncy signal after the signal down-conversion of input, described frequency separator is connected with described frequency mixer and described intermediate-freuqncy signal is separated into 13 tunnel different center frequency, the intermediate-freuqncy signal of different bandwidth, described 13 tunnel intermediate-freuqncy signals are amplified and filtering by IF processing unit respectively, detection, low frequency processing unit integration and amplification, obtain specific noise information.
Between wherein said V-band low noise amplifier and described frequency mixer, be connected with an image-reject filter, described image-reject filter, for a sideband of filtering double-sideband signal, is provided with a pre-IF amplifier between described frequency mixer and described frequency separation selector.
Described 13 tunnel intermediate-freuqncy signals comprise 9 single-side belt intermediate-freuqncy signals and 4 double-side band intermediate-freuqncy signals, the spaceborne V-band 13 receive path parameters that following table provides for the embodiment of the present invention:
The single-side belt intermediate-freuqncy signal of passage 1-9 is carried out conventional amplification, filtering, detection and the low integration of putting as shown in Figure 2, and the IF processing unit of those single-side belt intermediate-freuqncy signals comprises the first intermediate frequency amplifier, filter and the second intermediate frequency amplifier connecting successively.
The intermediate frequency of path 10-13 all has two sidebands, and their intermediate frequency process mode is as Fig. 3, and signal is after the first order is amplified, signal is divided into two-way, carry out respectively filtering, the amplification of sideband 1 and sideband 2, then it is synthetic to carry out power, two paths of signals is synthetic after detection and the low integration of putting again; Concrete, the IF processing unit of the double-side band intermediate-freuqncy signal of path 10-13 comprises the 3rd intermediate frequency amplifier, the power splitter connecting successively, the two filter being connected with two outputs of described power splitter respectively, the 4th intermediate frequency amplifier being connected with described two filter respectively, the 5th intermediate frequency amplifier, and the synthesizer being connected with described the 4th intermediate frequency amplifier, the 5th intermediate frequency amplifier respectively.
Described detecting circuit comprises a wave detector, and described low frequency processing unit comprises a low frequency amplifier.
The spaceborne low noise 13 passage V-band receivers that following table provides for the embodiment of the present invention and the comparison of traditional spaceborne V-band receiver:
| Characteristic | Novel satellite borne low noise 13 passage V-band receivers | The spaceborne V-band receiver of tradition |
| Equipment (platform) | One | Many |
| Integrated level | High | Low |
| Volume | Little | Greatly |
| Weight | Lighter | Heavier |
| Power consumption | Low | High |
| The data of same source | Good | Poor |
By the comparison of table 2, spaceborne low noise 13 passage V-band receivers provided by the invention have been realized the function of 13 receivers, and level of integrated system is high, and volume, weight and power consumption are all very little simultaneously, are highly suitable for spaceborne application.By its design, 13 receive paths are shared to a feed, make 13 passages can observe same target simultaneously, realized the complete homology of data, be conducive to the application in later stage.
The disclosed preferred embodiment of the present invention is just for helping to set forth the present invention above.Preferred embodiment does not have all details of detailed descriptionthe, and also not limiting this invention is only described embodiment.Obviously, according to the content of this specification, can make many modifications and variations.These embodiment are chosen and specifically described to this specification, is in order to explain better principle of the present invention and practical application, thereby under making, technical field technical staff can understand and utilize the present invention well.The present invention is only subject to the restriction of claims and four corner and equivalent.
Claims (8)
1. spaceborne low noise 13 passage V-band receivers, is characterized in that, comprise polarization selection feed, V-band low noise amplifier, frequency mixer, frequency separator, IF processing unit, detecting circuit and low frequency processing unit;
Described polarization selects feed receive noise signal and from described noise signal, isolate H polarization components, described V-band low noise amplifier is selected feed to be connected and the H polarization components of input is carried out to low noise amplification and export to described frequency mixer with described polarization, described frequency mixer will produce intermediate-freuqncy signal after the signal down-conversion of input, described frequency separator is connected with described frequency mixer and described intermediate-freuqncy signal is separated into 13 tunnel different center frequency, the intermediate-freuqncy signal of different bandwidth, described 13 tunnel intermediate-freuqncy signals are amplified and filtering by IF processing unit respectively, detecting circuit detection, low frequency processing unit integration and amplification, obtain specific noise information.
2. spaceborne low noise 13 passage V-band receivers as claimed in claim 1, it is characterized in that, between described V-band low noise amplifier and described frequency mixer, be connected with an image-reject filter, described image-reject filter is for a sideband of filtering double-sideband signal.
3. spaceborne low noise 13 passage V-band receivers as claimed in claim 1, is characterized in that, between described frequency mixer and described frequency separation selector, are provided with a pre-IF amplifier.
4. spaceborne low noise 13 passage V-band receivers as claimed in claim 1, is characterized in that, described 13 tunnel intermediate-freuqncy signals comprise 9 single-side belt intermediate-freuqncy signals and 4 double-side band intermediate-freuqncy signals.
5. spaceborne low noise 13 passage V-band receivers as claimed in claim 4, is characterized in that, the IF processing unit of described single-side belt intermediate-freuqncy signal comprises the first intermediate frequency amplifier, filter and the second intermediate frequency amplifier connecting successively.
6. spaceborne low noise 13 passage V-band receivers as claimed in claim 4, it is characterized in that, the IF processing unit of described double-side band intermediate-freuqncy signal comprises the 3rd intermediate frequency amplifier, the power splitter connecting successively, the two filter being connected with two outputs of described power splitter respectively, the 4th intermediate frequency amplifier being connected with described two filter respectively, the 5th intermediate frequency amplifier, and the synthesizer being connected with described the 4th intermediate frequency amplifier, the 5th intermediate frequency amplifier respectively.
7. spaceborne low noise 13 passage V-band receivers as claimed in claim 1, is characterized in that, described detecting circuit comprises a wave detector.
8. spaceborne low noise 13 passage V-band receivers as claimed in claim 1, is characterized in that, described low frequency processing unit comprises a low frequency amplifier.
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| CN201310557007.9A CN103560801A (en) | 2013-11-11 | 2013-11-11 | Satellite-bone low-noise 13-channel V wave band receiver |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462410A (en) * | 2018-11-09 | 2019-03-12 | 四川九洲电器集团有限责任公司 | A kind of transmitter and its signal processing method |
| CN110166125A (en) * | 2019-06-26 | 2019-08-23 | 广东工业大学 | A kind of satellite communication system and method |
| CN110518923A (en) * | 2019-09-16 | 2019-11-29 | 上海航天测控通信研究所 | Radiation receiver |
| CN111487623A (en) * | 2019-01-25 | 2020-08-04 | 中国科学院国家空间科学中心 | Satellite-borne terahertz atmosphere profile detector |
| CN113055043A (en) * | 2021-03-22 | 2021-06-29 | 西安易朴通讯技术有限公司 | Signal processing system and electronic equipment |
| CN113739931A (en) * | 2021-08-30 | 2021-12-03 | 华中科技大学 | Radiometer based on zero reflection network |
| CN115276691A (en) * | 2021-10-14 | 2022-11-01 | 神基科技股份有限公司 | Wireless signal receiving device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201166689Y (en) * | 2008-01-24 | 2008-12-17 | 武汉安德瑞科技有限公司 | High precision microwave radiometer |
| CN102243304A (en) * | 2010-05-14 | 2011-11-16 | 中国科学院空间科学与应用研究中心 | Foundation-based atmosphere profile microwave detector |
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2013
- 2013-11-11 CN CN201310557007.9A patent/CN103560801A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201166689Y (en) * | 2008-01-24 | 2008-12-17 | 武汉安德瑞科技有限公司 | High precision microwave radiometer |
| CN102243304A (en) * | 2010-05-14 | 2011-11-16 | 中国科学院空间科学与应用研究中心 | Foundation-based atmosphere profile microwave detector |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462410A (en) * | 2018-11-09 | 2019-03-12 | 四川九洲电器集团有限责任公司 | A kind of transmitter and its signal processing method |
| CN111487623A (en) * | 2019-01-25 | 2020-08-04 | 中国科学院国家空间科学中心 | Satellite-borne terahertz atmosphere profile detector |
| CN110166125A (en) * | 2019-06-26 | 2019-08-23 | 广东工业大学 | A kind of satellite communication system and method |
| CN110518923A (en) * | 2019-09-16 | 2019-11-29 | 上海航天测控通信研究所 | Radiation receiver |
| CN110518923B (en) * | 2019-09-16 | 2021-06-08 | 上海航天测控通信研究所 | Radiation receiver |
| CN113055043A (en) * | 2021-03-22 | 2021-06-29 | 西安易朴通讯技术有限公司 | Signal processing system and electronic equipment |
| CN113739931A (en) * | 2021-08-30 | 2021-12-03 | 华中科技大学 | Radiometer based on zero reflection network |
| CN115276691A (en) * | 2021-10-14 | 2022-11-01 | 神基科技股份有限公司 | Wireless signal receiving device and system |
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Application publication date: 20140205 |