BIBO Stability Condition - A discrete-time LTI system is BIBO stable if the output sequence {y[n]} remains bounded for any bounded input sequence{x[n]}

Example - Determine the DTFT of Let We can therefore write From Table 3.1, the DTFT of x[n] is given by

the Transform Domain An LTI discrete-time system is completely characterized in the time-domain by its impulse response {h[n]} We consider now the use of the DTFT and the z-transform in developing the transform￾domain representations of an LTI system

Stability Condition in Terms of the Pole Locations A causal LTI digital filter is BIBO stable if and only if its impulse response h[n] is absolutely summable, i.e., We now develop a stability condition in terms of the pole locations of the transfer function H(z)

Later in the course we shall review various methods of designing frequency-selective filters satisfying prescribed specifications We now describe several low-order FIR and IIR digital filters with reasonable selective frequency responses that often are satisfactory in a number of applications

一、半导体与数字集成电路： 1、1947年晶体管发明引起了电子学的一次革命，晶体管是约翰·巴丁、沃尔特·布雷登和威廉·肖克莱共同发明，该发明促成了计算机、通信等方面的飞速发展。鉴于它的重要价值，这些人共同获得了1956年的诺贝尔物理学奖

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1.1 信息 1.2 信息经济学 1.3 知识经济

▪ 8.1 信息时代的现代企业 ▪ 8.2 企业信息化建设