2.1 Discrete-time LTI Systems : The Convolution Sum （卷积和） 2.1.1 The Representation of Discrete-Time Signals in Terms of impulses

1. is absolutely summable, 2. has finite energy

Chapter 1 Signals and Systems (1) A simple RC circuit Source voltage Vs and Capacitor voltage Vc (2) An automobile

6.23 Shown in Figure 6.23 is for a lowpass filter. Determine and sketch the impulse response of the filter for each of the following phase characteristics:

4.3 4.4 4.10 4.11 4.14 4.15 4.24 4.25 4.32 4.35 4.36 4.37 4.43

2.7 A linear system S has the relationship +∞ yn]=]gn-2k] k=-∞0 between its input xn] and outputy[n] g[n]=un]-un-4] (a)x[n]=[n-1]y[n=u[n-2]-u[n-6] (b)x[n=6[n-2]yn=u[n-4]-u[n-8 (c)S is time-varying

3.1 3.13 3.15 3.34 3.35

作业： 1.14 1.15 1.16 1.17 1.21 (d) (e) (f) 1.22 (d) (g) 1.23 1.24 (a) (b) 1.26 (a) (b) 1.27 1.31

第三章处理机调度与死锁 3.1处理机调度的基本概念 3.2调度算法 3.3实时调度 3.4多处理机系统中的调度 3.5产生死锁的原因和必要条件 3.6预防死锁的方法 3.7死锁的检测与解除

第2章 Windows2000操作系统 2.2.1ndows2000€概述 2.2 Windows2000基本概念及操作 2.3 Windows22000资源管理 2.2.4ndows2000€控制面板 2.5其他