Millimeter wave agility signal open loop amplitude control method and device

Abstract

The invention discloses a millimeter wave agility signal open loop amplitude control method and device. The millimeter wave agility signal open loop amplitude control method comprises the steps that amillimeter wave signal with the broadband of 10 MHz to 67 GHz is divided into four frequency band signals with the frequency bands of 10 MHz to 3 GHz, 3 GHz to 20 GHz, 20 GHz-40 GHz and 40 GHz to 67GHz, and the four frequency band signals are amplified and attenuated to obtain amplitude adjusting signals; the amplitude adjusting signals are subjected to harmonic wave filtering to obtain filteredsignals; the filtered signals are synthesized and subjected to coupling output to obtain a coupling output signal; according to a temperature control word, a power control word and a frequency control word, the coupling output signal is subjected to digital processing and table look-up amplitude correction to generate an amplitude control word; the amplitude control word is converted into an analog signal; the analog signal is continuously transmitted back to an electrically controlled attenuator for controlling a signal attenuation amount; and a millimeter wave agility signal is output. High-stability and high-precision control is achieved; the accuracy of the output signal is less than 0.5dB; the amplitude control precision is less than 0.5dB; and the frequency, the amplitude, the phaseand the modulation speed of the output signal are within 100 ns.

Description

technical field [0001] The present application relates to the field of microwave signal amplitude control, in particular to a method and device for open-loop amplitude control of millimeter wave agile signals. Background technique [0002] In the microwave frequency source, the reference signal is multiplied, mixed, and filtered several times to form a broadband microwave signal. At this time, in order to ensure the quality of the signal, it needs to be specially processed before output. The signal quality includes amplitude, frequency, accuracy, and speed. , spurious, harmonic and other indicators. The special processing method here is the usual amplitude control method. [0003] In modern local wars, the competition of radar detection, electronic countermeasures and anti-countermeasures is becoming increasingly fierce. As one of the key components of weapon systems, the frequency source is no longer satisfied with only achieving high spectral purity indicators, but is mov...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present application provides a millimeter-wave agile signal open-loop amplitude control method and device to solve the problems of low control accuracy and low output signal accuracy of existing control methods

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