Ratio-method-based clamped beam direct micro-nano microwave detection and demodulation system in self-adaptive radar

Abstract

The invention provides a ratio-method-based clamped beam direct micro-nano microwave detection and demodulation system in a self-adaptive radar. The ratio-method-based clamped beam direct micro-nano microwave detection and demodulation system is mainly composed of a six-port clamped beam coupler, a microwave phase detecting module, a microwave frequency and power detecting module and a demodulating module. The self-adaptive radar is composed of an antenna, a transceiving conversion circuit, a ratio-method-based clamped beam direct micro-nano microwave detection and demodulation singlechip system, a signal memory, a signal analyzer, a microwave signal reconstruction device, a microwave signal modulator, and a microwave signal power amplifier. A direct heating type microwave power sensor adopts a polycrystalline silicon nanowire cluster to form a thermocouple arm. The thermal conductivity of the polycrystalline silicon nanowires is much lower than that of the conventional bulk materials,has the advantage of high thermoelectric conversion efficiency, and can greatly improve the sensitivity of the microwave detection system. By adopting the structures, the effects of integrating power, frequency and phase detecting modules of microwave signals for simultaneously and synchronously detecting the power, frequency and phases of the microwave signals at the same moment and demodulatingthe modulated signals are realized.

Description

technical field [0001] The invention proposes a direct micro-nano microwave detection and demodulation system for fixed beams supported by a ratio method in an adaptive radar, which belongs to the technical field of micro-electro-mechanical systems. Background technique [0002] Once the enemy's radar signal is not obvious enough or is an unknown signal, the electronic countermeasure system of the existing radar cannot quickly and accurately identify the enemy's radar system, so that the countermeasure effect will be seriously reduced. The new advanced adaptive radar electronic countermeasures include two key systems: adaptive radar reconnaissance and high-fidelity deception. Adaptive radar reconnaissance is able to analyze the working status and performance of the radar system according to the structural characteristics of unknown radar signals. Select the best and most targeted confrontation pattern to achieve the best confrontation effect, that is, a closed-loop system is...

AI Technical Summary

Problems solved by technology

However, in the existing technology, the detection of the power, frequency and phase of the microwave signal is carried out by using large-scale devices such as counters, resulting in large volume, high power consumption, narrow frequency band, and low integration of the entire system. Disadvantages, in addition, for more complex microwave modulated signals, the traditional technology needs to use another system for demodulation, which will also cause the above problems, and at the same time increase a lot of cost, making it difficult to use in adaptive radar

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