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      Design and Implementation of Direct IF Sampling and High-speed Storage System for Wideband Radar

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          Abstract

          To resolve the problem of sampling speed and real-time continuous mass storage in large instantaneous bandwidth radar signal direct Intermediate Frequency (IF) sampling, a wideband radar intermediate frequency signal acquisition and real-time storage system is developed in this paper. Firstly, according to bandpass signal’s alias-free sampling theorem, the sampling frequency is determined. And then the digital quadrature demodulation, buffer and high speed real-time continuous mass storage design scheme is proposed. Based on chassis server platform, this system uses QDRII SRAM as the buffer storage, and adopts PCIe to be the data transmission channel. It is verified in a phased array radar experimental system that this system makes a good performance and gives a feasible schema for wideband radar data acquisition.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 September 2012
          : 1
          : 3
          : 283-291
          Affiliations
          [1 ] (ATR National Defense Science and Technology Key Lab, National University of Defense Technology, Changsha 410073, China)
          Article
          7d1c72414e6b48e4b3cfc9793580eb22
          10.3724/SP.J.1300.2012.20054

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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