基于扩展收敛域CORDIC算法的超声时间增益补偿技术与FPGA实现

来源 :2017全国第十三届精密工程学术研讨会 暨精密机械分会理事会七届一次会议 | 被引量 : 0次 | 上传用户:Melissachen
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超声波在介质中随传播距离衰减声波能量,故超声检测需要对回波信号进行时间增益补偿.本文提出一种基于扩展收敛域CORDIC算法的超声时间增益补偿技术,通过CORDIC算法对增益补偿倍数进行实时计算,并在FPGA器件上实现.仿真结果表明,基于CORDIC算法的超声回波增益倍数计算结果相对误差不超过0.015%,具有精度高、实时性好、占用硬件资源少的特点.
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