A wideband radio frequency signal receiving method and receiver equipment

Abstract

The invention provides a broadband radio-frequency signal receiving method and a receiver device. The method is applied for the receiver. The method comprises the following steps: using one route of the first preset number routes of chirped pulses as a carrier, modulating a broadband radio-frequency signal to the carrier, to obtain one route of a modulating signal; executing the power equal division to one route of the obtained modulating signal, to obtain the second preset number routes of the modulating signals with the same power; using the second preset numbers of preset time delay parameters, executing the time delay processing to each target chirped pulse, to obtain one route of optical local oscillation corresponding to each target chirped pulse; and in allusion to each optical local oscillation, executing the digital coherent demodulation to the route of the optical local oscillation and one route of the second preset number routes of the modulating signals, to obtain one routeof the modulating signal, as a receiving signal on a channel corresponding to the route of the optical local oscillation. The method is applied for flexibly adjusting the number of the channels, andreceiving the broadband radio-frequency signals in the different scopes.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a wideband radio frequency signal receiving method and receiver equipment. Background technique [0002] Wideband radio frequency signals are widely used in deep space tracking, satellite payloads, electronic countermeasures, radar, and communication and navigation because of their advantages such as high distance resolution, strong anti-interference ability, and good target recognition ability. Widely used, the receiving method for broadband radio frequency signals has gradually become a research hotspot. [0003] The receiving method of the broadband radio frequency signal mainly includes: the receiving method of the broadband radio frequency signal based on the electrical receiving technology and the receiving method of the broadband radio frequency signal based on the photoelectric combination technology. Because the broadband radio frequency signal receiving ...

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Problems solved by technology

[0005] The disadvantage of this method is that multiple modulators need to be cascaded in the receiver to generate an optical frequency comb. The number of channels actually divided depends on the number of effective tooth lines of the generated optical frequency comb. Because the operation of adjusting the number of effective tooth lines is complex and difficult High, therefore, this method is not convenient to flexibly adjust the number of channels to receive wideband radio frequency signals in different ranges

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