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Frequency source assembly for satellite

A frequency source and component technology, applied in the direction of electrical components, automatic power control, etc., can solve problems such as signal mutual interference

Pending Publication Date: 2019-10-29
BEIJING INST OF RADIO MEASUREMENT
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a design scheme of satellite frequency source components, which has the characteristics of high frequency stability and low phase noise output, and at the same time solves the problem of mutual interference of signals in different bands

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  • Frequency source assembly for satellite

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Embodiment Construction

[0041] In order to make the technical solutions and advantages of the present invention clearer, the exemplary embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all implementations. Exhaustive list of examples. And in the case of no conflict, the embodiments in this description and the features in the embodiments can be combined with each other.

[0042] The core idea of ​​this scheme is to use the amplification power division unit to generate multi-channel reference signals with high frequency stability and low phase noise; to monitor the reference signal power in real time through the power monitoring circuit; to output the three points required by the system through the frequency generation unit frequency signals, and effectively suppress the mutual interference between output signals.

[0043] Such ...

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Abstract

The invention discloses a frequency source assembly for a satellite. The frequency source assembly comprises an amplification power division unit and a frequency generation unit; the amplification power division unit is used for generating a reference signal and performing primary power amplification and primary power distribution on the reference signal to generate multiple paths of reference amplification signals, wherein one part of the reference amplification signals are output through secondary power amplification and secondary power distribution, and the other part of the reference amplification signals are output to the frequency generation unit, and the frequency generation unit is used for carrying out frequency and phase control on the other part of the reference amplification signals and generating dot frequency signals of different wave bands to be output. The invention provides a design scheme of a frequency source assembly for a satellite, which has the characteristics ofhigh frequency stability, low phase noise output and the like, and solves the problem of mutual interference of signals of different wave bands.

Description

technical field [0001] The invention relates to the field of spaceborne radar. More specifically, it relates to a satellite frequency source assembly. Background technique [0002] The frequency source component is the core component of the radar system. Its function is to generate various frequency signals for the radar system. Its performance directly determines the stability and power of the radar system. The frequency source is realized by frequency synthesis technology, and there are three basic methods: direct digital frequency synthesis (DDS), phase-locked loop frequency synthesis (PLL) and comprehensive frequency synthesis (DDS+PLL). Due to the high flexibility of PLL frequency synthesis, small circuit size and low cost, it is widely used in frequency source components. [0003] Spaceborne radar systems have higher requirements for frequency stability, phase noise, spectral purity and other performance indicators of frequency source components; moreover, frequency ...

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Application Information

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IPC IPC(8): H03L7/093H03L7/099H03L7/16
CPCH03L7/093H03L7/099H03L7/16
Inventor 陈路
Owner BEIJING INST OF RADIO MEASUREMENT