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Key Technology Research of wideband digital receivers

Author: ZhouHao
Tutor: LuJinHui
School: Nanjing University of Technology and Engineering
Course: Signal and Information Processing
Keywords: Wideband digital receiver Data rate conversion Time-interleaved sampling Downconverter Numerically Controlled Oscillator Channelized receiver Instantaneous autocorrelation
CLC: TN851
Type: Master's thesis
Year: 2008
Downloads: 348
Quote: 3
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Wideband digital receiver is an important direction of development of the electronic reconnaissance receiver . Wideband digital receiver IF ( or RF ) direct sampling , data rate conversion system , subsequent signal processing system , such as is done in the digital domain signal reception . This paper focuses on two methods for wideband digital receiver : the guide receiver and channelized receiver commence discussions expand on key technical issues in the design and implementation of a wideband digital receiver . In this paper, time-interleaved sampling technique to solve the problem of high-speed and high-precision data acquisition , and analysis of the time-interleaved acquisition system channel mismatch mismatch error measurement and correction method . MATLAB simulation verify the feasibility of the algorithm . Broadband inverter technology research, design of a broadband frequency conversion efficiency . NCO data look-up table method generates schematic simulation . Quadrature demodulator channel mismatch study , given a time-domain method to calculate mismatch error , and channel mismatch correction simulation . The derivation of the mathematical model of polyphase DFT structures in critical and non - critical extraction introduced added to the filter channel receiver weighted overlap structure , channelization output detection method is given based on the instantaneous self- related accumulation signal detection method .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Receiver equipment, radio Radio > Receiver: the form of points
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