Radar ranging and speed measuring device and method

A radar ranging and speed measuring device technology, which is applied in measuring devices, radio wave measurement systems, radio wave reflection/reradiation, etc., can solve the problems of difficult application processing time and slow processing speed, and shorten the speed and distance measurement the effect of time

Pending Publication Date: 2022-02-08
北京晟德微集成电路科技有限公司
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  • Claims
  • Application Information

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Problems solved by technology

However, since the transmission, reception and processing of the FMCW signal with positive slope and the FMCW signal with negative slope are carried out in sequence, it belongs to serial processing, and its processing speed is slow, so it is difficult to apply to the scene with strict requirements on processing time

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  • Radar ranging and speed measuring device and method
  • Radar ranging and speed measuring device and method
  • Radar ranging and speed measuring device and method

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Embodiment Construction

[0049] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0050] figure 1 A schematic structural diagram of a radar ranging and speed measuring device provided by an embodiment of the present invention is shown. Such as figure 1 As shown, the radar ranging and speed measuring device includes: a first measurement module 100 , a second measurement module 200 and a signal processing module 300 . Wherein, the first measurement module 100 transmits the first frequency-modulated continuous wave signal and receives t...

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Abstract

The invention discloses a radar ranging and speed measuring device and method. The device comprises: a first measurement module which transmits a first frequency modulation continuous wave signal, receives a first echo signal and a second echo signal, and obtains a digital signal representing the frequency difference between the first frequency modulation continuous wave signal and the first echo signal; a second measurement module which transmits a second frequency modulation continuous wave signal while the first measurement module transmits the first frequency modulation continuous wave signal, receives the first echo signal and the second echo signal, and obtains a digital signal representing a frequency difference between the second frequency modulation continuous wave signal and the second echo signal; and a signal processing module which is used for carrying out data processing on the digital signals output by the first measurement module and the second measurement module to obtain distance and speed information of a target object. According to the radar ranging and speed measuring device and method, emission, receiving and processing of the FMCW signal with the positive slope and the FMCW signal with the negative slope can be realized at the same time, and the speed measurement time and the distance measurement time of the radar are effectively shortened.

Description

technical field [0001] The invention relates to the technical field of radar measurement, in particular to a radar ranging and speed measuring device and method. Background technique [0002] Radar is a transliteration of English Radar, derived from the abbreviation of radio detection and ranging, meaning "radio detection and ranging", that is, to use radio methods to find targets and determine their spatial positions. Therefore, radar is also called "radiolocation". Radar is an electronic device that uses electromagnetic waves to detect objects. The radar emits electromagnetic waves to irradiate the target and receives its echo, thereby obtaining information such as the distance from the target to the electromagnetic wave emission point, the distance change rate (radial velocity), azimuth, and height. [0003] Generally speaking, current radars basically use Frequency Modulation Continuous Wave (FMCW) radars. The main advantages of this type of radar are low radiation pow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/42G01S7/35G01S7/41
CPCG01S13/42G01S7/35G01S7/352G01S7/41
Inventor 张健
Owner 北京晟德微集成电路科技有限公司
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