CAJ | 학술논문

高速CCD系统中一般会存在多个需要使用外部存储器的图像处理算法，以往的技术仅支持一片外部存储器给一个算法使用，因此，在硬件电路设计中需要加入多片外部存储器，不利于 CCD的小型化，为此提出一种用于高速 CCD数据存储的DDR3仲裁控制器设计。利用 DDR3高速读取数据流的特点，通过时分复用的方式，使多个算法能够利用一片DDR3进行数据存储。实验结果表明，该方法能够实现多个算法使用一片 DDR3进行数据流的正确读取，有效减小硬件消耗，降低系统体积和功耗。
고속CCD계통중일반회존재다개수요사용외부존저기적도상처리산법，이왕적기술부지지일편외부존저기급일개산법사용，인차，재경건전로설계중수요가입다편외부존저기，불리우 CCD적소형화，위차제출일충용우고속 CCD수거존저적DDR3중재공제기설계。이용 DDR3고속독취수거류적특점，통과시분복용적방식，사다개산법능구이용일편DDR3진행수거존저。실험결과표명，해방법능구실현다개산법사용일편 DDR3진행수거류적정학독취，유효감소경건소모，강저계통체적화공모。
A plurality of image processing algorithms requiring the use of external memory exist in high speed CCD systems in general.However,as to the prior technologies,one external memory can only satisfy one algorithm,thus several external me-mories need to be added in the design of hardware,which is not conductive to the minimal of CCD.To solve this problem,a design of arbitrator with DDR3 memories was proposed.Based on the high-speed reading characteristics of DDR3 and the technology of TDMA (time division multiplex access),this method made it possible to use only one external memory,resulting in smaller sys-tem size.Results of experiments show that this technique can achieve accurately reading and writing data stream by using only one DDR3 .