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Signal processing method and device in space-frequency anti-interference system

A signal processing, frequency domain signal technology, applied in the field of signal processing, to achieve the effect of improving accuracy

Pending Publication Date: 2022-05-17
BEIJING BDSTAR NAVIGATION CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In practical applications, the effect of the above-mentioned space-frequency anti-interference method needs to be further improved

Method used

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  • Signal processing method and device in space-frequency anti-interference system
  • Signal processing method and device in space-frequency anti-interference system
  • Signal processing method and device in space-frequency anti-interference system

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the embodiments of the present application and the features in the embodiments can be combined arbitrarily with each other.

[0023] figure 1 It is a schematic diagram of the space-frequency anti-jamming system provided by the embodiment of this application. Such as figure 1 As shown, the system is processed as follows:

[0024] Receive the beam of the nth satellite through M array elements in the antenna array to obtain an analog signal;

[0025] Perform the following operations on the analog signal received by each array element, including:

[0026] Perform analog-to-digital conversion AD processing on the analog signal, and sample accor...

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Abstract

The embodiment of the invention discloses a signal processing method and device in a space-frequency anti-interference system. The method comprises the following steps: acquiring a frequency domain signal of an nth wave beam at K frequency points; according to the carrier phase correction value corresponding to each frequency point, the frequency domain signal of each frequency point is corrected, K corrected frequency domain signals are obtained, and the carrier phase correction value is determined according to an error transmission function corresponding to each array element in the antenna array at each frequency point; generating a time domain signal of the nth wave beam by using the corrected K frequency domain signals; wherein n = 1, 2, 3,..., N, and both N and K are integers greater than or equal to 2.

Description

technical field [0001] The embodiments of the present application relate to the field of signal processing, in particular to a signal processing method and device in an air-frequency anti-jamming system. Background technique [0002] In a complex electromagnetic environment, there is relatively large electromagnetic interference in the signal received by the receiver. In order to ensure that the receiver can be used for precise positioning and measurement, it is necessary to suppress strong interference. There are various anti-jamming methods in related technologies, for example, time-domain anti-jamming, frequency-domain anti-jamming, air-domain anti-jamming, space-time anti-jamming, and space-frequency anti-jamming. [0003] In related technologies, the air-frequency anti-jamming method is realized through the following methods, including: [0004] Divide the input signal received by the antenna array into several frequency bands, and perform array processing on each fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/21
CPCG01S19/21
Inventor 任超
Owner BEIJING BDSTAR NAVIGATION CO LTD
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