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Radar signal generation method, device and radar

A radar signal and analog signal technology, applied in the field of radar, can solve the problem of high cost of radar

Active Publication Date: 2021-07-20
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the first purpose of the present invention is to propose a radar signal generation method for solving the problem of high radar cost in the prior art

Method used

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  • Radar signal generation method, device and radar
  • Radar signal generation method, device and radar
  • Radar signal generation method, device and radar

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Embodiment Construction

[0080] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0081] The radar signal generation method, device and radar according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0082] figure 1 It is a schematic flowchart of a method for generating a radar signal provided by an embodiment of the present invention. Such as figure 1 As shown, the radar signal generation method includes the following steps:

[0083] S101. Obtain the analog signal to be scanned and the corresponding list; the frequency of the analog signal ...

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Abstract

The present invention proposes a radar signal generation method, device and radar, wherein the method includes: obtaining an analog signal to be scanned and a corresponding list; the analog signal to be scanned changes with time within a preset time period, and the frequency changes from the first frequency to Gradually increase to the second frequency, and the frequency and voltage correspond one-to-one; each voltage from the start voltage to the end voltage and the corresponding frequency are saved in the list; the frequency corresponding to the start voltage in the analog signal to be scanned is inconsistent with the start frequency When the analog signal to be scanned is converted to analog to digital to obtain the voltage; the analog signal to be scanned is linearly interpolated to obtain the start frequency, start voltage, stop frequency and stop voltage; the part from the start voltage to the stop voltage to be scanned is simulated The signal is determined to be a radar signal, so that the generation of the radar signal can be realized through software, and the generation of the radar signal by hardware circuits such as the PLL phase-locked loop is avoided, thereby reducing the cost of the radar.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a radar signal generating method, device and radar. Background technique [0002] The current radar is an all-digital radar signal source, including a clock buffer circuit, a digital phase-locked loop PLL, a direct digital frequency synthesizer, a switch amplifier filter circuit, an optocoupler isolation circuit, an interface circuit, and a control circuit; the input end of the clock buffer circuit and The crystal oscillator is connected, and the output end is connected with the input end and the control circuit of the digital phase-locked loop; the input end of the direct digital frequency synthesizer is connected with the output end of the digital phase-locked loop, and the output end is connected with the input end of the switch amplifier filter circuit; The optocoupler isolation circuit is respectively connected with the clock buffer circuit, the digital phase-locked loop, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/02
CPCG01S7/02
Inventor 段小河
Owner BYD CO LTD