Signal phase compensation method and device, signal scrambling and descrambling method and sensor

Abstract

The embodiment of the invention discloses a signal phase compensation method, and the method comprises the steps: receiving a test echo signal reflected by a test target object, and determining a first chirp signal and a second chirp signal from the test echo signal according to a preset sequence code; wherein the first chirp signal is a signal subjected to phase scrambling, and the second chirp signal is a signal not subjected to phase scrambling; determining a phase compensation value based on the phase of the first chirp signal and the phase of the second chirp signal; and performing phase compensation on the current echo signal by using the phase compensation value to obtain a compensated signal so as to perform target detection based on the compensated signal. Therefore, after the phase compensation value is determined based on the test echo signal, the current echo signal is subjected to phase compensation by using the phase compensation value, so that accurate descrambling operation on the current echo signal can be effectively realized, and the problem of system phase difference caused by limitation of hardware equipment is avoided; and the detection performance of the sensor on the target object is improved.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on February 28, 2020, with the application number 202010130870.6, and the title of the invention is "Signal scrambling and descrambling method and device, storage medium and radar system", the entire content of which Incorporated in this application by reference. technical field [0002] The present application relates to the technical field of signal anti-jamming, in particular to a signal phase compensation method and device, a signal scrambling and descrambling method, and a sensor. Background technique [0003] In traditional radio devices, separate phase scrambling / descrambling methods are generally used to suppress interference. [0004] However, the separate scrambling and descrambling structure will produce a system phase difference, which will reduce the signal-to-noise ratio of the echo signal, increase the probability of false alarms, and cause the ac...

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Problems solved by technology

[0004] However, the separate scrambling and descrambling structure will produce a system phase difference, which will reduce the signal-to-noise ratio of the echo signal, increase the probability of false alarms, and cause the accuracy of target detection to decrease

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