Self-adaptive measuring device for polarization parameter of radar electromagnetic signal

Abstract

The invention relates to the technical field of electromagnetic wave self-adaptive measurement and discloses a self-adaptive measuring device for a polarization parameter of a radar electromagnetic signal. The device comprises orthogonal bimodule horn dual polarized antennas, a binary-channel signal processing module and a polarization parameter self-adaptive measuring module. The orthogonal bimodule horn dual polarized antennas of the same caliber are connected with the input end of the binary-channel signal processing module through a horizontal polarization component and a vertical polarization component cable respectively, and the output end of the binary-channel signal processing module is connected with the polarization parameter self-adaptive measuring module through the horizontal polarization component and the vertical polarization component cable respectively. By means of the self-adaptive measuring device for the polarization parameter of the radar electromagnetic signal, a radar signal is received through the orthogonal bimodule horn dual polarized antennas, processed through the binary-channel signal processing module and then fed into a polarization parameter and difference self-adaptive measuring module, and finally, the polarization parameter of the radar signal can be measured by observing whether the self-adaptive tracking condition of a zero value or a minimum value is met. The self-adaptive measuring device is low in cost and easy to achieve.

Description

technical field [0001] The invention relates to the technical field of self-adaptive measurement of electromagnetic waves, in particular, using the inherent polarization characteristics of electromagnetic waves, adopting vector sum-difference processing for the horizontal polarization components and vertical polarization components of received electromagnetic signals, so as to realize the polarization of electromagnetic signals. A polarization parameter adaptive measurement method and device for radar electromagnetic signals at instantaneous polarization parameters. Background technique [0002] Radar signals, optical signals and other electromagnetic wave signals have polarization characteristics. For example, during the working process of the radar, the electromagnetic wave signal is transmitted to the target, and the target information is obtained by comparing the difference between the target echo signal and the transmitted signal in the time domain, frequency domain, an...

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Problems solved by technology

[0006] Aiming at the problem that the existing polarization measurement technology cannot adapt to the rapid change of polarization parameters and the structure of the measurement device is complex, the present invention provides a polarization parameter adaptive measurement method and device for radar electromagnetic signals. Compared with other measurement methods, Since the adaptive polarization measurement method uses the vector sum and vector difference of the orthogonal polarization components of the electromagnetic signal to satisfy a specific amplitude and phase relationship, and then uses a local minimum search algorithm to measure the polarization parameters

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