Electromagnetic Spectrum Reconnaissance Device of L-band Low Altitude Surveillance Radar

Abstract

The invention discloses an electromagnetic spectrum reconnaissance device of an L-band low-altitude surveillance radar, comprising a reconnaissance antenna unit, a receiving unit, a signal processing unit and a display control unit; the reconnaissance antenna unit mainly completes reconnaissance and reception of signals in an electromagnetic environment, The receiving unit performs amplitude limiting, low-noise amplification, filtering, amplitude-frequency characteristic compensation, and digital down-conversion of multiple channel radio frequency signals, and performs high-speed digital acquisition of the received signals and sends them to the signal processing unit for digital processing to realize Parameter measurement and sorting of multiple digital signals, and parameter measurement results are sent to the display control unit for display. The invention has the characteristics of small amount of equipment, simple system structure, and stable and reliable performance. Under the premise of utilizing part of radar equipment resources, less equipment is used to realize the effective combination of radar target detection function and electromagnetic spectrum reconnaissance function.

Description

technical field [0001] The invention relates to the field of radar systems, in particular to an electromagnetic spectrum reconnaissance device of an L-band low-altitude surveillance radar. Background technique [0002] Low-altitude surveillance radar realizes the search and tracking of low-altitude targets by scanning the airspace. The battlefield environment is full of electromagnetic signals from various radio equipment. The electromagnetic environment is complex and ever-changing. The uncertainty brought about by complexity and time-varying makes the outcome of the war difficult to predict. In informationized warfare, the types and quantities of radio equipment used by both warring parties have increased, coupled with high-power civilian equipment, and a large number of electromagnetic signals radiated in nature, making the electromagnetic environment very complicated. The electromagnetic spectrum directly affects the acquisition, transmission, exchange, and processing o...

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