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Vol. 158, Issue 11, November 2013, pp. 195-199

 

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A Wideband Receiver with Adaptive Strong Interference Suppression
 
Lichun LI, Feng WEI, Wenmin CHEN

System and Engineering Institute of Information Engineering University, Zhenzhou, Henan 450000, China
E-mail: lichunlee@yeah.net

 

Received: 20 September 2013   /Accepted: 25 October 2013   /Published: 30 November 2013

Digital Sensors and Sensor Sysstems

 

Abstract: In this paper, a wideband receiver with high dynamic range is proposed. At the front end of the proposed receiver, a sensing waveform is used to sense the input signal. And by adjusting the sensing waveform so as to project the interference to zero, the receiver can eliminate the strong interference signal adaptively before sampling. Both the theoretic analysis and simulation show that this method can suppress the interference signal effectively and improve the sampling accuracy of the weak desired signal when the instantaneous dynamic range of the input signal is larger than the dynamic range of the ADC's quantizer.

 

Keywords: Dynamic range, Strong interference suppression, Compressive sampling, Effective number of bits.

 

 

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