Time-domain wave beam synthesizing and scanning method for open loop system ultra-wideband pulse source array

Abstract

The present invention provides an open-loop system ultra-wide bandwidth pulse source array time domain wave beams forming and scanning method The method comprises basic steps of setting initial values for parameters of array element spacing, array element number, scanning angle list, pulse resident time and the like; computing trigger delay sequence of each array unit to the first predetermined point according to corresponding formulas; a master control system generating delay instructions and sending them to a delay control unit; the delay control unit controlling the small time difference between the pulse source outputs through a numeric accurately-controlled delay line and assuring that the time difference counteracts the wave path-difference at the predetermined point for realizing the forming of synchronized wave beams at the predetermined point; going to a next predetermined point from the predetermined point when the radiation pulse resident time value in the predetermined point reaches to a predetermined value, and repeating the wave beam forming step for realizing the time domain wave beams forming of wave beams of a pulse source array between adjacent points. The present invention has the characteristics of simple structure, low cost, stable and reliable performance, maintenance-free, strong extendibility and wide scope of application.

Description

technical field [0001] The present invention mainly relates to the design field of ultra-wideband pulse sources, in particular to an open-loop ultra-wideband pulse source array time-domain beam synthesis and scanning method, which is mainly applicable to ultra-wideband communication and radar systems and electromagnetic pulse EMC standard testing and other fields. Background technique [0002] In the field of ultra-wideband technology, the design of ultra-wideband pulse sources is one of the key directions of its research. Especially for application scenarios such as ultra-wideband communication and radar system design, electromagnetic pulse EMC standard testing, etc., it is increasingly necessary to design and realize the beam space scanning function of ultra-wideband transmitters. However, most of the existing ultra-wideband radar systems scan space based on mechanical scanning of the radar servo system. In the 1990s, relevant scholars drew inspiration from narrowband ra...

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Problems solved by technology

However, its technical route is very complicated, which is not conducive to further increasing the number of array elements and realizing the beamforming output of a large-scale pulse source array, and it is poor in maintenance-free and high in design costs in practical engineering applications, so it has been difficult to obtain large-scale promotion

However, in the products and devices of other companies or individuals, there is no support for the pulse source array time-domain beamforming and scanning functions.

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