以下为句子列表：
英文: A:Modem enables the mutual conversion of analog signals and digital signals.Dial up connection is impossible without medom.
中文: 调制解调器是实现模拟信号和数字信号互相转变的设备，通过它用户的电脑才可连接因特网。
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英文: Abstract: A noise model for the analog correlator used in the ultra wideband receivers is proposed due to lack of simulation capability on noise performance of the correlator in current EDA tools.The analog correlator circuit is divided into several parts
中文: 文摘:给出了分析模拟相关器的噪声模型.将相关器分成不同的几个子模块后,对各模块分别计算等效噪声源.然后用理想脉冲源代替噪声源计算电路的时变传输函数,接着用傅里叶变换计算输入输出的频域关系.利用电路的对称结构合并对称的子模块可以进一步简化模型.该模型可以用来估计相关器的噪声性能.
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英文: Abstract: Abstract： As to the surge signal existing in a radar analog circuit，a simple and prectical method for impulse signal was presented.
中文: 摘要：摘要：针对某型雷达模拟电路中存在的浪涌信号，提出了一种简单、实用的冲激响应理论分析方法。
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英文: Abstract: This paper briefly reviews the development course of the analog integrated filters.The class,design methods and implementing techniques of the analog integrated filters are given,and then the intended development tendency is proposed.
中文: 文摘:简要地回顾了模拟集成滤波器的发展历程,综述了其种类、设计方法和实现技术,最后,对未来的发展趋势进行了展望。
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英文: Analog and digital satellite TV signal will be modulated and transmitted to the VOD box and TV set through cable network.
中文: 卫星电视接收系统先对模拟和数字卫星电视信号进行调制，并通过有线电视网络，将调制后的信号传送到视频点播机和电视机。
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