Frequency selection method for millimeter wave linear frequency modulation ranging

A wave linearity and frequency selection technology, applied in the frequency selection field of millimeter wave linear frequency modulation ranging, can solve the problems of software frequency selection software running away, irregular output signal, inconvenient signal processing, etc., to avoid the risk of execution errors, Effects that are flexible to use, easy to test and troubleshoot

Active Publication Date: 2019-07-23
芜湖博高光电科技股份有限公司
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Problems solved by technology

[0004] In the previous frequency selection method, the signal is sampled by a chip, and the software frequency selection is realized by using the FFT algorithm. Very inconvenient during investigation;
[0005] It is also possible to use filters to directly filter frequency selection, but the output signal of filter direct filter frequency selection is irregular, which is inconvenient for back-end signal processing

Method used

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  • Frequency selection method for millimeter wave linear frequency modulation ranging
  • Frequency selection method for millimeter wave linear frequency modulation ranging
  • Frequency selection method for millimeter wave linear frequency modulation ranging

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] Such as Figure 1 to Figure 2 As shown, a frequency selection method for millimeter-wave chirp distance measurement also includes a millimeter-wave chirp frequency selection system, and the millimeter-wave chirp frequency selection system includes a millimeter-wave chirp radar, a preamplifier, and a band-pass filter , a main road amplifier, a band-stop filter, a detection integration circuit, a branch amplifier and a comparator, the millimeter-wave chirp radar is used for signal input, the preamplifier is used for amplifying the signal, and the band-pass filter and the band-stop filter are used For filtering and selecting signals, the main amplifier and branch amplifier are also used for signal amplification, the detection and integration c...

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Abstract

The invention discloses a frequency selection method for millimeter wave linear frequency modulation ranging, relating to the field of application of millimeter wave. The frequency selection method further comprises a millimeter wave linear frequency modulation frequency selection system, wherein the millimeter wave linear frequency modulation frequency selection system comprises a millimeter wavelinear frequency modulation radar, a preamplifier, a band-pass filter, a main path amplifier, a band suppressor filter, a detection integral circuit, a branch path amplifier, and a comparator. Two paths, band pass and band stop, are adopted for processing, making a signal of a selected frequency more prominent; then two paths of signals are compared, so that frequency selection is more efficient;further, the system internally comprises hardware alone and comprises no software, so that the risk of wrong execution of software in running is prevented, the system is safer and more concise, functional modules are visible, and tests and fault processing are more convenient. The frequency selection method guarantees more regular output signals and higher security, and makes tests and fault processing more convenient.

Description

technical field [0001] The invention relates to the field of millimeter wave applications, in particular to a frequency selection method for millimeter wave linear frequency modulation ranging. Background technique [0002] With the advancement of technology, millimeter wave technology has also developed rapidly. Millimeter wave has the characteristics of infrared high precision and microwave all-weather. In recent years, with the breakthrough progress of millimeter wave solid-state devices and monolithic circuits in my country, its reliability has been greatly improved and its cost has been greatly reduced. Light weight, flexible and convenient to use. [0003] Millimeter-wave chirp is also being used in more and more applications, especially ranging and speed measurement. The basic principle is that the distance information and speed information can correspond to the difference frequency information, so the accurate frequency selection of the difference frequency is the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/08G01S7/28G01S7/35
CPCG01S13/08G01S7/28G01S7/35
Inventor 苏刚刘成虎马军裴进明金海涛刘同海冯庆陶宗虎于涛许陵窦红梅陈玉喜陈俊
Owner 芜湖博高光电科技股份有限公司
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