A circuit, method and device for digitizing array radar signals

An array radar and signal technology, applied in the field of electronic information, can solve the problem that the array radar signal is difficult to meet the high sampling rate and high conversion accuracy at the same time, and achieve the effect of improving the sampling speed and conversion accuracy, improving the sampling depth and high conversion accuracy.

Active Publication Date: 2020-02-18
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a circuit, method and device for digitizing array radar signals, aiming to solve the problem that it is difficult to simultaneously meet the two requirements of high sampling rate and high conversion accuracy when digitizing array radar signals in the prior art

Method used

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  • A circuit, method and device for digitizing array radar signals
  • A circuit, method and device for digitizing array radar signals
  • A circuit, method and device for digitizing array radar signals

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Embodiment 1

[0023] figure 1 A circuit for digitizing array radar signals provided by Embodiment 1 of the present invention is shown. For convenience of description, only parts related to the embodiment of the present invention are shown.

[0024] The circuit for digitalizing array radar signals in the embodiment of the present invention includes N sampling channels 11, M analog-to-digital converters (ADCs) 12 and logic controllers 13, except that each sampling channel 11 shares M ADCs 12, The circuit structure of each sampling channel 11 is the same. A sampling channel 11 includes L sampling unit groups 14, each sampling unit group 14 includes M sampling units 15, and each sampling unit 15 includes an input switch 16, a sampling and holding capacitor 17 and an output switch 18, each In each sampling unit 15, one end of the capacitor 17 is connected to the input switch 16 and the output switch 18, and the other end of the output switch 18 of the M sampling units 15 in each sampling unit g...

Embodiment 2

[0033] figure 2 It shows the implementation process of the method for digitizing array radar signals provided by Embodiment 2 of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0034] In step S201, the radar detection signal received by each array element in the array radar is acquired, and the radar detection signal received by each array element is input into a corresponding sampling channel.

[0035] In the embodiment of the present invention, radar detection signals received by each array element in the array radar are obtained, and these radar detection signals are respectively input into corresponding sampling channels, so as to sample these radar detection signals. Preferably, the number of sampling channels is the same as the number of elements of the array radar, so that the radar signals of the multi-element radar can be processed simultaneously,...

Embodiment 3

[0046] image 3 The structure of the device for digitizing array radar signals provided by Embodiment 3 of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, including:

[0047] The signal acquisition module 31 is configured to acquire radar detection signals received by each array element in the array radar, and input the radar detection signals received by each array element into a corresponding sampling channel.

[0048] In the embodiment of the present invention, radar detection signals received by each array element in the array radar are obtained, and these radar detection signals are respectively input into corresponding sampling channels, so as to sample these radar detection signals. Preferably, the number of sampling channels is the same as the number of elements of the array radar, so that the radar signals of the multi-element radar can be processed simultaneously, and the...

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Abstract

The present invention is suitable for the electronic information technology field, and provides a circuit, method and device used for the array radar signal digitlization. The circuit comprises N sampling channels, M analog-to-digital converters and a logic controller, each sampling channel comprises L sampling unit sets, each sampling unit set comprises M sampling units, and each sampling unit comprises an input switch, a sampling and storage capacitor and an output switch. In each sampling unit, one end of the sampling and storage capacitor is connected with the input switch and the output switch simultaneously, in each sampling unit set, the other ends of the output switches of the M sampling units are in one-to-one correspondence connection with the M analog-to-digital converters, a writing control line and a reading control line of the logic controller are connected with the input switches and the output switches respectively, and N, M and L are natural numbers, thereby effectively improving the sampling depth of the array radar signals, at the same time, improving the sampling speed and the conversion precision of the array radar signals.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and in particular relates to a circuit, method and device for digitizing array radar signals. Background technique [0002] Digitization and multi-array elements are important features of modern radar systems. The analog-to-digital converter (ADC) is an indispensable part to realize the digitization of array radar signals (or multi-array element radar signals), and the sampling speed and conversion accuracy are the key factors of ADC. The two key indicators of , greatly affect the digitization effect of array radar signals. [0003] At present, the digitization process of array radar signals mainly adopts high-speed ADCs with continuous conversion, such as pipeline ADC, folding and interpolation ADC, and time-interleaved ADC. High transform accuracy is two requirements. [0004] In addition, some researchers have proposed a signal digitization method that can meet the requirement...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/285H03M1/12
CPCG01S7/285H03M1/1245
Inventor 桑子儒杨永峰邝忠华王晓辉胡战利任宁赵斌清付鑫吴三梁栋刘新郑海荣
Owner SHENZHEN INST OF ADVANCED TECH
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