CN102545826B - The local frequency source of secondary of frequency conversion receiver for satellite - Google Patents
The local frequency source of secondary of frequency conversion receiver for satellite Download PDFInfo
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- CN102545826B CN102545826B CN201010584578.8A CN201010584578A CN102545826B CN 102545826 B CN102545826 B CN 102545826B CN 201010584578 A CN201010584578 A CN 201010584578A CN 102545826 B CN102545826 B CN 102545826B
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Abstract
The present invention relates to satellite receiver, disclose a kind of local frequency source of secondary of frequency conversion receiver for satellite, comprise: high steady temperature compensating crystal oscillator (1) provides fundamental frequency signal, through harmonic oscillator (2), (7), quadruple Surface Acoustic Wave Filter (3), (5), quadruple amplifier (4), (6), nine frequency multiplication Surface Acoustic Wave Filter (8), (10), after nine octamonic amplifiers (9), (11) filter and amplification, provide four-time harmonic and nine subharmonic of fundamental frequency signal; After detector amplifier (12) detection is amplified, provide crystal oscillator telemetered signal.The frequency source volume that the invention solves prior art is large, the deficiencies such as difficulty selected by poor reliability and device, and achieve compact conformation, integrated level is high, and debugging difficulty is lower waits beneficial effect.
Description
Technical field
The present invention relates to satellite receiver, particularly a kind of local frequency source of secondary of frequency conversion receiver for satellite.
Background technology
Along with the development of satellite technology, spaceborne receiver is towards miniaturized, modular future development.For meeting the change of certain model satellite carried UHF Receiver Design, for this reason, the design of associated frequency source is carried out.
Frequency source is the heart of modern radio-frequency and microwave electron system, and its performance directly affects whole electronic system.At present, the technical scheme of frequency source is divided into two classes substantially: self-oscillation source and frequency synthesis source.Frequency source device is of a great variety, mainly contains crystal oscillator, cavity oscillation device, voltage controlled oscillator, PLL frequency synthesize etc.But the frequency source of prior art has that volume is large, the deficiencies such as difficulty selected by poor reliability and device, cannot meet the change in design of the satellite carried UHF receiver of certain model.
Do not find explanation or the report of technology similar to the present invention at present, not yet collect similar data both at home and abroad yet.
Summary of the invention
In order to the frequency source volume solving prior art is large, poor reliability and device select the deficiencies such as difficulty, for meeting the instructions for use of certain model satellite carried UHF receiver, the object of the present invention is to provide a kind of local frequency source of secondary of frequency conversion receiver for satellite.Utilize the present invention, volume miniaturization can be solved, reduce the technical problem such as debugging difficulty, meeting spatial dependability.
In order to reach foregoing invention object, the present invention is to provide a kind of local frequency source of secondary of frequency conversion receiver for satellite for technical scheme that its technical problem of solution adopts, and this device comprises:
The fundamental frequency signal that high steady temperature compensating crystal oscillator provides produces the N subharmonic of fundamental frequency signal through harmonic oscillator, after two groups of quadruple Surface Acoustic Wave Filter and quadruple amplifier filter and amplification, there is provided the four-time harmonic of fundamental frequency signal, as the local oscillation signal of frequency conversion receiver;
The fundamental frequency signal that high steady temperature compensating crystal oscillator provides produces the N subharmonic of fundamental frequency signal in addition through harmonic oscillator, after two group of nine frequency multiplication Surface Acoustic Wave Filter and nine octamonic amplifier filter and amplifications, there is provided nine subharmonic of fundamental frequency signal, as the local oscillation signal of frequency conversion receiver;
The fundamental frequency signal that high steady temperature compensating crystal oscillator provides, after detector amplifier detection is amplified, provides crystal oscillator telemetered signal, for monitoring crystal oscillator operating state.
The local frequency source of secondary of a kind of frequency conversion receiver for satellite of the present invention, owing to taking technique scheme, adopts high steady temperature compensating crystal oscillator to provide the fundamental frequency signal with high stability, solves the shortcoming of output frequency drift under high/low temperature; Adopt passive diode frequency multiplier circuit to make harmonic oscillator, circuit is simple, and reliability is high; Adopt Surface Acoustic Wave Filter harmonic inhabitation, reduce debugging difficulty.Therefore, device of the present invention achieves compact conformation, and integrated level is high, and debugging difficulty is little waits beneficial effect.
Accompanying drawing explanation
Accompanying drawing is the theory diagram of the local frequency source of secondary of frequency conversion receiver for satellite of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described.
Accompanying drawing is the theory diagram of the local frequency source of secondary of a kind of frequency conversion receiver for satellite of the present invention, and as shown in the embodiment of accompanying drawing, this device comprises:
High steady temperature compensating crystal oscillator 1, harmonic oscillator 2,7, quadruple Surface Acoustic Wave Filter 3,5, quadruple amplifier 4,6, nine frequency multiplication Surface Acoustic Wave Filter 8,10, nine octamonic amplifiers 9,11, detector amplifier 12.
Now by as follows for the Signal transmissions relationship description of this device:
The fundamental frequency signal that high steady temperature compensating crystal oscillator 1 provides produces the N subharmonic of fundamental frequency signal through harmonic oscillator 2, after quadruple Surface Acoustic Wave Filter 3, quadruple amplifier 4, quadruple Surface Acoustic Wave Filter 5 and quadruple amplifier 6 filter and amplification, provide the local oscillation signal of four-time harmonic as frequency conversion receiver of fundamental frequency signal;
The fundamental frequency signal that high steady temperature compensating crystal oscillator 1 provides produces the N subharmonic of fundamental frequency signal through harmonic oscillator 7, after nine frequency multiplication Surface Acoustic Wave Filter 8, nine octamonic amplifier 9, nine frequency multiplication Surface Acoustic Wave Filter 10 and nine octamonic amplifier 11 filter and amplifications, provide the local oscillation signal of nine subharmonic as frequency conversion receiver of fundamental frequency signal;
In addition, the fundamental frequency signal that high steady temperature compensating crystal oscillator 1 provides, after detector amplifier 12 detection is amplified, provides crystal oscillator telemetered signal for monitoring crystal oscillator operating state.
Above-mentioned harmonic oscillator 2,7 is diode frequency multiplier.
The fundamental frequency that the output frequency of apparatus of the present invention both can have been exported by crystal oscillator changed, and also can select different filters, amplifier to change.
The indices of the local oscillation signal that device of the present invention produces as: frequency accuracy, frequency stability (comprising long-term and short-term), phase noise, temperature stability depend on these indexs of high steady temperature compensating crystal oscillator, and frequency multiplier and the regulating action to these performance index such as amplifier, filter less, therefore, debugging main in manufacture process is the indication range analyzed to meet the crystal oscillator required for required local oscillation signal index, and the workload of adjustment is little.
In the embodiment of the present invention, all circuit blocks all adopt functional module.First owing to adopting high temperature temperature compensating crystal oscillator to provide the fundamental frequency signal with high stability, the shortcoming of common crystal oscillating circuit output frequency drift under high/low temperature is solved, therefore, without the need to other design temperature compensating circuit; Secondly adopt passive diode frequency multiplier circuit as harmonic oscillator, circuit is simple, greatly improves compared to triode frequency multiplier circuit reliability; Last harmonics restraint filter circuit adopts Surface Acoustic Wave Filter, reduces debugging difficulty.All circuit, through rational layout designs, can provide local oscillation signal needed for frequency conversion for frequency conversion receiver.Apparatus structure of the present invention is compact, and integrated level is high, and during debugging, only need the amplitude adjusting crystal oscillator output frequency and output signal, the workload of therefore debugging difficulty and debugging is very little.
Claims (1)
1. a local frequency source of secondary for frequency conversion receiver for satellite, is characterized in that, this local frequency source of secondary comprises: high steady temperature compensating crystal oscillator, first harmonic generator, second harmonic generator, the first quadruple Surface Acoustic Wave Filter, second quadruple Surface Acoustic Wave Filter, first quadruple amplifier, the second quadruple amplifier, the one or nine frequency multiplication Surface Acoustic Wave Filter, two or nine frequency multiplication Surface Acoustic Wave Filter, one or nine octamonic amplifier, the two or nine octamonic amplifier, detector amplifier;
The Signal transmissions relation of this local frequency source of secondary is as follows:
The fundamental frequency signal that high steady temperature compensating crystal oscillator provides produces the N subharmonic of fundamental frequency signal through first harmonic generator, after the first quadruple Surface Acoustic Wave Filter, the first quadruple amplifier, the second quadruple Surface Acoustic Wave Filter and the second quadruple amplifier filter and amplification, provide the local oscillation signal of four-time harmonic as frequency conversion receiver of fundamental frequency signal;
The fundamental frequency signal that high steady temperature compensating crystal oscillator provides produces the N subharmonic of fundamental frequency signal through second harmonic generator, after the one or nine frequency multiplication Surface Acoustic Wave Filter, the one or nine octamonic amplifier, the two or nine frequency multiplication Surface Acoustic Wave Filter and the two or nine octamonic amplifier filter and amplification, provide the local oscillation signal of nine subharmonic as frequency conversion receiver of fundamental frequency signal; In addition, the fundamental frequency signal that high steady temperature compensating crystal oscillator provides, after detector amplifier detection is amplified, provides crystal oscillator telemetered signal for monitoring crystal oscillator operating state;
Above-mentioned first harmonic generator, second harmonic generator are diode frequency multiplier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010584578.8A CN102545826B (en) | 2010-12-10 | 2010-12-10 | The local frequency source of secondary of frequency conversion receiver for satellite |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010584578.8A CN102545826B (en) | 2010-12-10 | 2010-12-10 | The local frequency source of secondary of frequency conversion receiver for satellite |
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| CN102545826A CN102545826A (en) | 2012-07-04 |
| CN102545826B true CN102545826B (en) | 2016-03-30 |
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| CN201010584578.8A Active CN102545826B (en) | 2010-12-10 | 2010-12-10 | The local frequency source of secondary of frequency conversion receiver for satellite |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103312322B (en) * | 2013-05-16 | 2016-08-17 | 中国电子科技集团公司第四十一研究所 | A kind of local oscillation circuit and method for generating local oscillation signal |
| CN106231777B (en) * | 2016-07-29 | 2019-01-29 | 中国原子能科学研究院 | A kind of signal source of high stability of superconducting cyclotron |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6009129A (en) * | 1997-02-28 | 1999-12-28 | Nokia Mobile Phones | Device and method for detection and reduction of intermodulation distortion |
| CN101030668A (en) * | 2007-02-28 | 2007-09-05 | 上海杰盛无线通讯设备有限公司 | Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3977591B2 (en) * | 2000-04-27 | 2007-09-19 | 株式会社東芝 | Frequency multiplication circuit and semiconductor integrated circuit |
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2010
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6009129A (en) * | 1997-02-28 | 1999-12-28 | Nokia Mobile Phones | Device and method for detection and reduction of intermodulation distortion |
| CN101030668A (en) * | 2007-02-28 | 2007-09-05 | 上海杰盛无线通讯设备有限公司 | Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase |
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| CN102545826A (en) | 2012-07-04 |
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