A performance optimization method of shortwave prognosticator based on automatic control technology

Abstract

The invention relates to a short-wave prognosis selector performance optimization method based on automatic control technology, comprising: performing automatic index test on a frequency hopping filter module by a computer program-controlled instrument, using a difference optimization algorithm for the test data to calculate, analyze and select the optimal control code of the frequency hopping filter corresponding to the theoretical center frequency of the short-wave prognosis selector; then automatically testing the short-wave prognosis selector by the computer program-controlled instrument,calculating and analyzing the in-band intermodulation index, out-of-band intermodulation index and gained data at all test theoretical center frequencies to obtain the control value corresponding to the optimal value of the amplification gain of the broadband low-noise amplifier; further automatically testing the gain values of all the theoretical center frequencies of the short-wave prognosis selector under different AGC adjustment values by the computer program-controlled instrument to obtain the AGC control values corresponding to each theoretical center frequency of the short-wave prognostic selector; and storing the control codes and control values in the short-wave prognostic controller.

Description

technical field [0001] The invention relates to an automatic production technology of a short-wave prognosticator, and a method for optimizing the performance of a short-wave prognosticator based on automatic control technology. Background technique [0002] With the development of frequency hopping technology, shortwave preselectors are widely used in military communication systems. It performs matching transmission for frequencies in the passband, and performs reflection attenuation for frequency mismatch in the stopband, thereby realizing signal spectrum filtering. The short-wave pre-selector is mainly used to improve the selectivity of the receiver and transmitter. The short-wave pre-selector can effectively suppress out-of-band interference, improve and improve the electric field radiation sensitivity of the station, and ensure that the station can operate in a complex electromagnetic environment. normal work. The short-wave pre-selector is mainly used in the front end...

AI Technical Summary

Problems solved by technology

Due to the manufacturing deviation of devices and printed boards, the shortwave preselector has poor consistency in the production process, especially the internal frequency hopping filter and broadband low noise amplifier components, so each shortwave preselector depends on experienced debuggers Manually adjust the parameters of each module to improve the performance index of the shortwave prognosticator, resulting in low production efficiency and high production costs

At present, only a few manufacturers can design and produce shortwave prognosticators, and the automatic production technology is limited, and the performance of shortwave prognosticators cannot be optimized by computer control technology and intelligent algorithms.

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