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Finite impulse response utilizing the principle of superposition

机译：利用叠加原理的有限冲激响应

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A critical parameter in any finite impulse response (FIR) designnis the impulse response length, which must be optimized for the givenndesign specifications in order to reduce the size of the filter. To thisnend, many design algorithms have been introduced, such as Remeznexchange, linear programming, and least mean squares. A new algorithmnhas been derived that is simple, efficient, and accurate for the designnof arbitrary filter specifications and requires fewer computations thannmany other FIR approaches. This paper provides the definition of thenbasic functions used for the design process. An overview of the designnprocess is given and the design technique used to design filters withntailored passband and stopband responses to yield a near-optimum timenlength is presented. This design can be very useful when compensatingnfor the effects of a second transducer or other second order effects innsurface acoustic wave (SAW) devices. The effects of monotonicallynincreasing sidelobes on the impulse response length are discussed andnillustrated. The addition of arbitrary phase response to the filterndesign process is discussed. The results of the current FIR approach arendiscussed and compared with other design techniques
机译：任何有限脉冲响应（FIR）设计中的一个关键参数是脉冲响应长度，必须针对给定的设计规格对其进行优化，以减小滤波器的尺寸。为此，引入了许多设计算法，例如Remeznexchange，线性规划和最小均方。已经推导出了一种新的算法，该算法对于任意滤波器规格的设计是简单，高效和准确的，并且比任何其他FIR方法所需的计算量都更少。本文提供了用于设计过程的基本功能的定义。给出了设计过程的概述，并介绍了用于设计具有定制通带和阻带响应以产生接近最佳时间长度的滤波器的设计技术。当补偿表面声波（SAW）设备中的第二个换能器或其他二阶效果时，此设​​计可能非常有用。讨论并举例说明了旁瓣单调增加对脉冲响应长度的影响。讨论了在滤波器设计过程中添加任意相位响应的问题。没有讨论当前的FIR方法的结果，并与其他设计技术进行了比较。

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