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Orthogonal lower mixing frequency digital template matching pulse ultra wide band radio signal receiving method

A technology of wireless signal reception and pulsed ultra-wideband, applied in orthogonal multiplexing systems, shaping networks in transmitters/receivers, multiplexing communications, etc., can solve the problem of extremely high sampling rate and large hardware Realization cost, huge power consumption and other issues, to achieve the effect of easy chip integration, simplified hardware structure and realization cost, high baseband bandwidth

Inactive Publication Date: 2007-08-22
TSINGHUA UNIV
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Problems solved by technology

For high-speed data applications, this method requires extremely high ADC sampling rate, requires a large hardware implementation cost, and brings huge power consumption
Therefore, this scheme also has great limitations for high-speed data applications.

Method used

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  • Orthogonal lower mixing frequency digital template matching pulse ultra wide band radio signal receiving method
  • Orthogonal lower mixing frequency digital template matching pulse ultra wide band radio signal receiving method
  • Orthogonal lower mixing frequency digital template matching pulse ultra wide band radio signal receiving method

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Embodiment Construction

[0051] The pulse ultra-wideband wireless signal receiving method of quadrature down-mixing digital template matching that the present invention proposes, its corresponding receiver is made up of radio frequency front-end, zero-IF baseband sampling circuit, digital matching correlation and Rake receiving three major parts (serial structure):

[0052] (1) The RF front-end is composed of antenna, low noise amplifier (LNA), I / Q two-way analog mixer and low-pass filter. The received signal is amplified at this stage and I / Q two-way analog down-mixing , low-pass filtering, etc., to obtain a zero-IF analog baseband signal after spectrum shifting;

[0053] (2) The zero-IF analog baseband signal output by the RF front-end enters the zero-IF baseband sampling circuit; the I / Q two-way zero-IF analog baseband signal is sent to a high-sampling rate low-precision ADC with a sampling rate equal to several times the chip rate for sampling and quantification , generating I / Q two-way digital b...

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Abstract

A method for receiving radio pulse signal includes applying high sampling rate ADC after frequency is mixed under orthogonality and applying flexible and match-correlated master plate being able to regulate adaptively and being set with different shifting positions in digital master plate-match.

Description

technical field [0001] The invention relates to an orthogonal down-mixing digital template matching pulse ultra-wideband wireless signal receiving method, which simultaneously supports pulse radio (IR) or carrier-modulated ultra-high rate, The high-performance reception and demodulation of ultra-wideband pulse signals with low power spectral density can carry out simple and practical circuit design and implementation, and is easy for chip integration, belonging to the technical field of wireless pulse signal reception. Background technique [0002] Narrow pulse ultra-wideband technology is a wireless communication technology that uses nanosecond-level non-sine wave narrow pulses to transmit data. Its signal spectrum range is very wide, usually above 500MHz, and it has strong confidentiality, strong anti-interference ability and high transmission rate. Advanced unique advantages. In order to avoid interference to other civilian equipment, FCC (Federal Communications Commissi...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04B1/18H04J11/00H04B1/7115H04L25/03
Inventor 张盛陆建华张建良邱见明邢腾飞
Owner TSINGHUA UNIV
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