A software radio receiver with direct conversion and its digital processing

Robert Morelos-Zaragoza, Shinichiro Haruyama, Masayoshi Abe, Noboru Sasho, Lachlan B. Michael, Ryuji Kohno

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This paper discusses a design methodology suitable for the development of software defined radio platforms. A flexible digital receiver was designed and implemented using a multi-port direct converter and an FPGA-based platform. The design starts with a hardware-oriented top-level system model. The model is built based on basic signal processing blocks connected together in a graphical tool. Carrier symbol timing recovery is implemented in the discrete-time (digital) domain with an interpolator-based synchronizer. Carrier phase and frequency are recovered using a feedback synchronization algorithm (a second-order type-II digital PLL). Experimental results of the platform and its simulation results demonstrate the effectiveness of the proposed design methodology.

Original languageEnglish
Pages (from-to)2741-2749
Number of pages9
JournalIEICE Transactions on Communications
Issue number12
Publication statusPublished - 2002 Dec
Externally publishedYes


  • Design methodology
  • Direct conversion
  • Software defined radio

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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