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Correlator design using genetic algorithms for medical imaging

机译:使用遗传算法进行医学成像的相关器设计

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Pulse compression using weighted chirp pulses require a set of bulky correlators to implement the underlying matched filters, each of which consists of a large number of multipliers. In medical ultrasound imaging, 64 or 128 identical correlators are required depending on the system level and the number of multipliers of each correlator can be larger than 256. In order to reduce the hardware complexity, a multiplierless correlator was designed based on genetic algorithms. In our design, each multiplier coefficients is constrained to be a signed-power-of-two (SPOT) integer or a sum of two such integer numbers. The designed multiplierless correlators are compared with the correlators using the ideal coefficient values and proven to provide the aimed performance with greatly reduced hardware complexity.
机译:使用加权线性调频脉冲的脉冲压缩需要一组庞大的相关器来实现底层匹配滤波器,每个滤波器都由大量的乘法器组成。在医学超声成像中,取决于系统级别,需要64或128个相同的相关器,每个相关器的乘法器数量可以大于256。为了降低硬件复杂性,基于遗传算法设计了无乘法器。在我们的设计中,每个乘数系数被约束为有符号二次幂(SPOT)整数或两个这样的整数之和。使用理想系数值将设计的无乘法器相关器与相关器进行比较,并证明可在大大降低硬件复杂性的情况下提供目标性能。

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