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The Research on High Speed and Efficiency Digital Channelized Receiver and Its Implementation

Author: LiuXuFeng
Tutor: DiaoMing；WuYaLin
School: Harbin Engineering University
Course: Electronics and Communication Engineering
Keywords: Passive radar seeker Digital Channel Polyphase filter High speed and efficiency CORDIC algorithm
CLC: TN851
Type: Master's thesis
Year: 2010
Downloads: 139
Quote: 0
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Abstract


Receiving and processing of the radar signal has always been a hot issue of key technologies and research in the passive radar seeker . With the emergence of low probability of intercept (LPI) radar and frequency agile radar , the traditional passive radar seeker receiver faces enormous challenges . Traditional radar receiver often analog reception circuit linear differential the parameters temperature drift large digital receiver to become the inevitable trend of development . In order to adapt to such wideband radar signal received , there is an urgent need for the development of large instantaneous bandwidth , large dynamic range , high sensitivity wideband digital receiver . Digital channelized receiver as the broadband receiver a system , has the total probability receive and process signals arrive at the same time the ability to become wideband digital receiver hot . Channelized technology and its subsequent processing algorithms in-depth study in engineering applications for the background , design a set of digital channelized receiver , and its performance was tested . Deduced a combination of high speed and efficiency figures based on polyphase filter and FFT uniform channel structure . CORDIC algorithm channelized subsequent processing signal instantaneous amplitude and phase information extraction , at the same time , the application of the phase difference method to achieve instantaneous frequency measurement . High - speed analog-to-digital converter hardware implementation ADC08D1000 data sampling , the use of FPGA and DSP digital signal processing .

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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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