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A ku-band adaptive anti-jamming frequency-variable radar

An adaptive and frequency-changing technology, applied in the field of radar, can solve the problem that the bandwidth of the input signal cannot exceed its requirements

Active Publication Date: 2018-05-25
北京东方安高微电子科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] 2) The input signal bandwidth of the analog-to-digital converter ADC cannot exceed its requirements

Method used

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  • A ku-band adaptive anti-jamming frequency-variable radar

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Embodiment 1

[0018] like figure 1 As shown, the Ku-band adaptive anti-jamming frequency-varying radar includes an antenna, a receiving part and a transmitting part, and the receiving part includes a circulator, a filter one, a limiter, a low-noise amplifier, a mixer, and a signal After the frequency is converted to an intermediate frequency by the receiving part, the mixer is sequentially connected to filter two, low-noise amplifier, voltage-controlled attenuation, amplifier and filter three. Connected mixer, filter 4, power amplifier, chirp signal, IF filter, enter the mixer, amplify and output through the power amplifier.

[0019] Acquisition and processing are completed by the pre-stage matching distribution circuit, which is composed of C1, C2, L1, L2, C4 and R1, C3, R3, R4, C5 respectively. The pre-stage matching distribution circuit is composed of C1, C2, L1, L2, C4 and R1, C3, R3, R4, C5 respectively, and then node A is coupled to AMP-1 and AMP-2 via C6 and C7 for inverting amplifi...

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Abstract

Provided is a Ku wave band adaptive anti-interference frequency-dependent radar, comprising an antenna, a receiving portion and an emission portion. The receiving portion comprises a circulator, a first filter, an amplitude limiter, a low noise amplifier and a mixer which are successively in connection; the frequency of signals is converted into intermediate frequency through the receiving portion; the mixer comprises a second filter, a low noise amplifier, a voltage-controlled attenuation device, an amplifier and a third amplifier which are successively in connection; intermediate frequency filtering is amplified, controllable attenuation is amplified, and filtering is outputted. The emission portion comprises a mixer, a fourth filter and a power amplifier which are successively in connection.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a Ku-band adaptive anti-jamming frequency-varying radar. Background technique [0002] With the rapid development of electronic technology, it is becoming more and more common to use digital systems to process analog signals in many fields such as aviation, radar, and communications. Converting continuously changing analog signals into digital signal data that can be processed by digital systems The acquisition system has also been widely used, and has gradually become the key and bottleneck of the entire system. In order to adapt to the rapid development of digital signal processing technology and the accelerating digitization process in the high-tech field, the analog-to-digital converter (hereinafter referred to as ADC) as the core of the data acquisition system has made great progress in performance. Many companies such as TI, ADI etc. have provided mature ADC chips, in which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/02G01S7/06
CPCG01S7/06G01S13/02
Inventor 陈昌志杜成兵宋明清
Owner 北京东方安高微电子科技有限公司
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