Compressively sampling and receiving system and method for impulse ultra-wideband signals

Abstract

The invention relates to a compressively sampling and receiving system for impulse ultra-wideband signals, which is characterized by comprising a multichannel sampling unit for distributing a plurality of channels for the impulse ultra-wideband signals to perform parallel sampling, a measuring waveform generator for respectively sending measuring waveforms to channels of the multichannel sampling unit, and a digital rear-end receiving processing unit for receiving measured values sampled by the multichannel sampling unit. The impulse ultra-wideband signals are continuous multiframe signals; the measuring waveforms generated by the measuring waveform generator are irrelevant to impulse ultra-wideband receiving signals which enter the multichannel sampling unit; the channels respectively linearly project the impulse ultra-wideband receiving signals according to the measuring waveforms generated by the measuring waveform generator; and the digital rear-end receiving processing component processes the measuring values sampled by the multichannel sampling unit. The compressively sampling and receiving system for the impulse ultra-wideband signals does not require high sampling speed, long delay line or exact channel estimation, and can fully exploit the potential of the high-speed communication and the high-precision distance measurement of the Infrared Radiation-Ultra Wide Bandwidth (IR-UWB).

Description

technical field [0001] The invention relates to a compressed sampling receiving system and method for pulsed ultra-wideband signals, in particular to a low-speed sampling receiving system and method for pulsed ultra-wideband signals oriented to short-distance wireless communication applications. Background technique [0002] The traditional IR-UWB (Impulse Radio-Ultra WideBand, "IR-UWB" for short) signal receiving schemes include: full-resolution digital receiver, analog correlation receiver, Rake receiver, and energy detection receiver. They are described as follows: [0003] Full Resolution Digital Receiver [0004] Sampling the received signal with filtered out-of-band noise at the Nyquist rate or even a higher rate, and all subsequent processing tasks are based on high-resolution sampling of the output of the ADC (Analog to Digital Converter, “ADC” for short) sequence processing. The advantages of this receiving method are high flexibility, simple structure, easy conf...

AI Technical Summary

Problems solved by technology

[0021] The technical problem solved by the present invention is: by constructing a compressed sampling receiving system of pulsed ultra-wideband signals, it overcomes that the sampling reception of pulsed ultra-wideband signals in the prior art is difficult to realize because of high hardware complexity, or the communication rate and ranging accuracy are limited The problem of not being able to fully exploit the communication and ranging potential of IR-UWB

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