The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON SIGNAL PROCESSING
Transactions ID Number: 52-289
Full Name: Jihong Yan
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: No. 2006, Xiyuan Road, West District of High-tech, Chengdu, P.R.China
Country: CHINA
Tel: £¨0£©13408589299
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Fax: 028-61831238
E-mail address: yanjihong_21cn@126.com
Other E-mails: yanjihong_uestc@yahoo.cn
Title of the Paper: An Effective Joint Implementation Design of Channel Equalizer and DDC for WDAR Receiver
Authors as they appear in the Paper: Jihong Yan , Gang Cao , Bin Xie , Gaokui Wu , Zishu He
Email addresses of all the authors: yanjihong_21cn@126.com , caogang0926@163.com , 927xiebin@163.com , uestckui@foxmail.com , zshe@uestc.edu.cn
Number of paper pages: 11
Abstract: The technologies of digital down conversion (DDC) and channel equalization in wideband digital array radar (WDAR) are introduced . This paper analyses the frequency domain equalization algorithm based on weighting least squares (LS) in detail . An efficient DDC based on polyphase structure under the condition of intermediate frequency (IF) bandpass sampling is present . A simple structure which combine equalizer and DDC is proposed . Then a design example is given , and the saving of FPGA resource consumption is discussed . The corresponding simulation and test results validate the DDC based on polyphase structure and show the obvious improvement to the channel mismatch after equalization . The simple structure which combines DDC and equalizer is prove to be valid , feasible and highly efficient .
Keywords: Wideband digital array radar (WDAR) , Channel equalization , Bandpass sampling , Digital down conversion (DDC) , Polyphase structure
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