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个滤波器
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  “个滤波器”译为未确定词的双语例句
     The numbers of multiplications using the NVMF filter banks are about half of the CDF-9/7's in DWT/IDWT, its computational complexity is lower than using the CDF-9/7's.
     采用BNVF类中的几个滤波器,可使DWT/ID WT的乘法运算次数不及CDF-9/7的一半,其计算复杂度低于CDF-9/7。
短句来源
     Furthermore,combined filters can improve narrow-band filtering.
     用多个滤波器串接构成滤波器组,可提高光束空间窄带滤波性能。
短句来源
     The design method of the discret dyadic wavelet filters is alsointroduced. At last,two filter examples are presented.
     最后介绍了离散二进小波变换滤波器的设计方法,给出了小波互补滤波器的幅频特性公式,并列举了两个滤波器设计实例。
短句来源
     Three identical SPUDT filters are placed in parallel on the same substrate, the IDT's central seperations of the three filters have a difference of λ/3 between each other.
     在同一基片上平行放置三个相同的SPUDT滤波器,这三个滤波器的中心距彼此相差λ/3。
短句来源
     Considering the frequency response of filter change rapidly, we make the filter is perfect reconstruction on the point of center frequency. The error of reconstruction is small by the point.
     考虑到滤波器组在过渡带出现的其幅频特性变化的情况,选择在两个滤波器交叠的中心频率处,使其满足滤波器的完全重构条件,其附近频率处的误差也降到很小的范围之内。
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  相似匹配句对
     Auto tracked Filter
     自动跟踪滤波器
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     Decentralized Filter
     分散滤波器
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  branch filter
The loop filter is also a first order filter similar to the branch filter.
      


This paper presents a new variant circuit of a nonscanning frequency measuremntreceiver. In this receiver, the phase modulation of rf signal is used to reduce thenumber of filters, it only requires (m+n) filters to obtain the frequency resolution ofthe prototype channel separating receiver using m×n filters. As the numerical exampleshows, the performances of this receiver are better than that O? the matrix receiver.

本文提出了一种新的非搜索法测频接收机变型电路。在此接收机中利用高频信号的调相方法来减少滤波器数目。它只用(m+n)个滤波器,就可得到具有m×n个滤波器的一般分路测频接收机的频率分辨率。通过一个数值例子可以证明:它的性能胜过矩阵式接收机。

The error rate of an optical fiber communication channel is calculated in this paper, The channel considered consists of a laser or light emitting diode as the light source and an optical fiber as transmission medium. The transmitted optical pulses are dispersed in the fiber causing intersymbol interference. The receiver has an avalanche photodiode and a filter. The former contains a P-N junction and a random multiplier. In the process of calculation, the characteristic functions of electron number random variables...

The error rate of an optical fiber communication channel is calculated in this paper, The channel considered consists of a laser or light emitting diode as the light source and an optical fiber as transmission medium. The transmitted optical pulses are dispersed in the fiber causing intersymbol interference. The receiver has an avalanche photodiode and a filter. The former contains a P-N junction and a random multiplier. In the process of calculation, the characteristic functions of electron number random variables caused by various elements are multiplied and the probability density function is des cribed in Fourier series form. Finally, the functional relationship of the worst case and average probabilities of error corresponding to different intersym bol interferences with the input power is determined.

本文是计算光纤链路中的误码率的。所考虑的链路中光源是一个激光器或发光二极管,传输介质是光纤。光纤中传输的光脉冲,因色散等原因而引起码间干扰。接收部分是一个雪崩二极管(APD)和一个滤波器。APD管简化为一个P-N结跟随一个随机倍增器。在计算过程中,将各因素引起的电子数随机变量的特征函数相乘,而概率密度用傅里叶级数展开。最后算出对应于不同码间干扰量的最差误码率和平均误码率与输入光功率的函数关系。

A dual bandwidth adaptive filter for tracking maneuvering targets has been developed in this thesis. The two filters having different band-width are based on Singer models with different parameters .The state estimate of a target is always a linear combination of outputs from the two filters.The.hypoth- a esis test theory is used for determining combination coefficients.Monte-Carlo si- mulat ion shows that the dual bandwidth filter has short settling-time and reacts fast to target maneuvering changes.

本文研究了一个跟踪机动目标的双带宽自适应滤波器,两个不同带宽的滤泼器由不同参数的Singer模型构成。目标运动状态的估计始终是这两个滤波器输出的线性组合假设检验理论用来确定组合系数的计算。Monte-Carlo仿真结果表明,这一双带宽滤波器调整时间和对目标机动变化的反应时间都较快。

 
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