阻带衰减的英文
attenuation in suppressed band
例句与用法
- The performance of filters is not very good . the attenuation of stop - band is almost - 44db . the performance cannot satisfy the requirement for some application situation
其阻带衰减大约在- 44db ，对于一些对滤波器阻带性能要求较高的应用场合，这个数值是达不到要求的。 - Bessel function design simulation results show the small pass - band ups , stop - band attenuation , in the pass - band with a better group delay characteristics , which can meet the design requirements
仿真结果表明贝塞尔函数设计的滤波器通带起伏小，阻带衰减大，在通带内群延迟特性较好，可以很好满足设计要求。 - Applying the method of this article , we can get that the attenuation of stop - band is - 75db and the error of reconstruction is 0 . 0015 . the simulation program and experiment result are provided . the correctness and validity are proved
用本文的方法，在重构误差将近千分之一的情况下，取得了较好的滤波器特性，其阻带衰减达到- 75db ，文中给出了matlab实验程序及结果，并通过simulink仿真，证明了这种方法的正确性与有效性。 - The main work of the system can be divided into four main parts as the following : ( 1 ) 10 . 5ghz bandpass filter the main contradiction of filter is caused by its function of dividing frequencies . in order to properly divide frequencies , not only need passband ’ s attenuation to be as small as possible and stopbands ’ as big as possible , but also need a sharp and quick change between the attenuation of passband and stopband , thus to make their diversity obvious
这四个功能模块分别是: (一) 10 . 5ghz带通滤波器滤波器的主要矛盾是由它分隔频率的功能决定的,为了使分隔理想,一方面要求通带的衰减尽可能小,阻带衰减尽可能大,亦即通带和阻带的衰减差值要尽量大;另一方面要求通带和阻带之间衰减的变化应尽可能快,最好是陡峭的跳变,使阻带和通带的分隔十分明显。
