An ultra-wideband frequency sweep pulse power detection device and method

Abstract

The invention provides an ultra-wideband sweep-frequency pulse power detecting device and method. No requirement on the bandwidth in the pulse of the to-be-measured pulse signal is needed; and measurement of the radar signal pulse power in an ultra-wideband high-power range from an L waveband to an X waveband is realized. The invention provides a plan of frequency conversion of a C-band signal andan X-band signal by using a local oscillator source, so that the circuit devices are reduced and the costs are lowered; and simple and unified controlling of the local oscillator signal frequency isrealized. Besides, a main control unit is used for controlling the frequency of a local oscillator signal according to the central frequency of a detected signal and a C-band signal or the X-band signal can be mixed to be at an L band or S band in a narrow range of the local oscillator signal, so that the requirement on the local oscillator source is reduced, more types of local oscillator sourcesare provided, and the device cost is lowered.

Description

technical field [0001] The invention relates to the technical field of signal detection and measurement, in particular to an ultra-wideband frequency sweep pulse power detection device and method. Background technique [0002] With the development of radar technology, the radar signal has been developed from pulse modulation to intra-pulse modulation, and the modulation bandwidth has also increased to the order of gigahertz. Intra-pulse modulation is usually linear frequency modulation. For the frequency range covering L, S, C, and X bands, and the bandwidth of gigahertz level linear frequency modulation radar pulse signals, the current test instruments include pulse power meters and spectrum analyzers. The pulse power meter converts the thermal effect of the microwave signal into an electrical signal to measure the pulse power. The pulse power meter includes two types: the terminal power meter and the pass-through power meter. It is difficult to measure broadband with dire...

AI Technical Summary

Problems solved by technology

However, the existing frequency-sweeping pulse power detection devices must include a logarithmic detector. Due to the limitation of the logarithmic detector, the existing frequency-sweeping pulse power detection device can only detect and measure the L-band and S-band signals, and cannot C-band and X-band signals are detected and measured. Therefore, it is impossible to measure the pulse power of radar signals in the ultra-wideband high-power range from L-band to X-band.

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