Pulse signal generator and radar including same

A pulse signal and generator technology, applied in the electronic field, can solve the problems affecting the accuracy of radar target detection and the small amplitude of a single transistor, and achieve the effect of simple structure, small tailing and overshoot, and high reliability

Inactive Publication Date: 2016-10-12
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Most of the Gaussian signals required by existing high-power ultra-wideband radars are generated by avalanche triodes, and larger amplitudes are obtained by connecting avalanche triode units in series. After a certain delay, there will be an overshoot, which will affect the accuracy of radar detection of deep underground targets

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  • Pulse signal generator and radar including same
  • Pulse signal generator and radar including same

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms well known to those skilled in the art. Additionally, while illustrations of parameters containing particular values ​​may be provided herein, it should be understood that parameters need not be exactly equal to the corresponding values, but may be approximated to similar values ​​within acceptable margins of error or design constraints.

[0027] The basic principle of the present invention is to provide a pulse signal generator, using two-stage series avalanche triode as a signal generator circuit to build a n...

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Abstract

A pulse signal generator, comprising: a drive pulse generating circuit, used to generate a balanced trigger pulse signal; a pulse signal generating circuit, used to convert the balanced trigger pulse signal into an unbalanced pulse signal; an overshoot suppression circuit, used to suppress the unbalanced The overshoot of the balanced pulse signal is used to output the overshoot-suppressed unbalanced pulse signal; and the balanced pulse generating circuit is used to convert the overshoot-suppressed unbalanced pulse signal into a balanced pulse signal. Also provided is a radar comprising the above-mentioned pulse signal generator. The balanced pulse waveform generated by the generator of the present invention is symmetrical, has small tailing and overshoot, and large amplitude, and is suitable for a detection application system suitable for mid-depth ultra-wideband radar, and meets detection requirements of different depths.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a pulse signal generator and a radar including the pulse signal generator. Background technique [0002] Ultra-wideband technology is a wireless technology for data communication through sub-nanosecond or picosecond narrow pulse signals. It is widely used in daily life, such as through-wall radar, ground-penetrating radar, life detection radar, radar imaging, etc. The pulse generator is an important part of the ultra-wideband system. To a certain extent, the output pulse bandwidth of the pulse transmitter determines the working bandwidth of the ultra-wideband system. Therefore, the selection and design of the pulse signal are very important for the ultra-wideband radar system. [0003] At present, the methods of using semiconductor devices to generate pulse signals are roughly divided into two categories: one is to use the competitive risk phenomenon of CMOS logic gate circui...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/335H03K5/01G01S7/282
CPCH03K3/335G01S7/282H03K5/01
Inventor 叶盛波刘晋伟张群英董泽华方广有
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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