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Compressive sampling based ultra wideband (IR-UWB) signal detection method

A pulsed ultra-wideband, compressed sampling technology, applied in transmission systems, electrical components, etc., can solve the problems of accurate sampling rate requiring accurate channel estimation, hardware complexity, etc., to achieve no need for analog delay lines, low sampling rate, and low hardware cost. Effect

Inactive Publication Date: 2011-01-19
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

[0010] The technical problem solved by the present invention is to provide a pulse ultra-wideband signal detection method based on compressed sampling, which overcomes the technical problems of complex hardware, high sampling rate and accurate channel estimation in the prior art

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Embodiment Construction

[0032] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0033] like figure 1 , figure 2 , image 3 , Figure 4 As shown, the specific embodiment of the present invention is: the pulse ultra-wideband signal detection method based on compressed sampling in the present invention includes a pulse ultra-wideband signal compression sampling receiving system, and the pulse ultra-wideband signal compression sampling receiving system includes a pulse ultra-wideband signal receiving system. A multi-channel parallel sampling unit 2 for sampling broadband signals in multiple channels, a measurement waveform generator 1 for sending measurement waveforms to each channel of the multi-channel sampling unit respectively, and a measurement waveform generator 1 for receiving the measured values ​​sampled by the multi-channel sampling unit The digital back-end processing component 3, each channel linearly projects the...

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Abstract

The invention relates to a compressive sampling based ultra wideband (IR-UWB) signal detection method, which comprises an IR-UWB signal compressive sampling receiving system, and the IR-UWB signal compressive sampling receiving system comprises a multi-channel parallel sampling unit for carrying out sampling on a plurality of channels of the IR-UWB signals, a measuring waveform generator for respectively sending measuring waveforms to the channels of the multi-channel sampling unit, and a digital back-end processing component for receiving the measuring values of the channels sampled by the multi-channel sampling unit; and the channels carry out linear projection on the IR-UWB signals respectively according to the measuring waveforms generated by the measuring waveform generator. The method comprises the following steps: obtaining a compressive sampling sequence of pilot-symbol receiving signals, obtaining a compressive sampling sequence of data-symbol receiving signals, and obtaining a symbol decision. The compressive sampling based IR-UWB (ultra wideband) signal detection method can realize the low-sampling-rate and low-hardware-cost on the detection of the IR-UWB signals without high sampling rate, analog delay line and compressive sampling receiving mode with accurate channel estimation.

Description

technical field [0001] The invention relates to a pulse ultra-wideband signal detection method, in particular to a compressed sampling-based pulse ultra-wideband signal detection method. Background technique [0002] In short-range wireless communication applications using IR-UWB (Impulse Radio-Ultra WideBand, "IR-UWB") as the physical layer technology, the signaling method of "pilot-assisted + BPM modulation" is used the most common. In the traditional IR-UWB signal receiving scheme, full-resolution digital receivers, analog correlation receivers, Rake receivers, etc. can be used for symbol detection in this signaling mode, and they are briefly described as follows: [0003] Full Resolution Digital Correlative Receiver [0004] Perform Nyquist or higher rate sampling on the received signal, and obtain a correlation template according to the sampling sequence of the pilot pulse received signal (you can use MLSE, or GML CLEAN and other algorithms to obtain a clean template,...

Claims

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Application Information

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IPC IPC(8): H04B1/707
Inventor 吴绍华张钦宇张凌雁王野姚海平
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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