Pulse compression circuit and method based on soliton wave

Abstract

The invention provides a pulse compression circuit based on a soliton wave. A nonlinear transmission line is designed in a soliton wave mode, and a sine wave is compressed to the soliton wave by utilizing a compression principle of the soliton wave, so that narrow pulse compression is realized; engineering of the nonlinear transmission line is that a uniform lossless transmission line is designed on a radio frequency printed board, variable capacitors are selected according to parameter requirements for pulse compression to be uniformly connected to the nonlinear transmission line, so that nonlinear transmission line characteristics are simulated. The circuit utilizes the nonlinear transmission line to work in the soliton mode to compress the pulse, the structure is simple, and design and debugging are easy; engineering implementation can be realized on the printed board only without other chips, so that the cost is low, and the practical value is high; and moreover, a well pulse shaping characteristic is provided, so that the pulse can be compressed to a picosecond level, the pulse amplitude is larger and the additional noise is smaller.

Description

technical field [0001] The invention relates to the field of signal sources, in particular to a pulse compression circuit based on soliton waves, and also to a pulse compression method based on soliton waves. Background technique [0002] With the improvement of the performance of radar systems, satellite communication systems, electronic countermeasures and reconnaissance systems, and precision guidance system equipment, higher requirements are placed on devices and measuring instruments. As an important part of the communication system and its measuring instruments, the pulse width of the sampling circuit directly determines the highest bandwidth and overall performance of the entire system or instrument. With the continuous advancement of technology, the width of the pulse waveform is also continuously reduced, and it can reach the level of picoseconds and sub-picoseconds, and the ways of generating pulses are becoming more and more abundant. [0003] Since the emergence...

AI Technical Summary

Problems solved by technology

[0005] (1) Due to the limitations of technology and semiconductor doping technology, the fastest rising edge of the output pulse of the step recovery diode fast-edge pulse shaping technology is limited to tens of picoseconds, which is difficult to further improve;

[0006] (2) There will be relatively large additional noise during the pulse forming process;

[0007] (3) The pulse amplitude is limited, usually at the millivolt level;

[0008] (4) The circuit debugging is complicated, and it is easy to cause circuit self-excitation and oscillation

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