下图所示的输出采样信号的Z变换C(z)为()。[img=440x89]18031d9a4c8c761.png[/img]
A: [img=180x49]18031d9a5698af5.png[/img]
B: [img=180x49]18031d9a616caa6.png[/img]
C: [img=180x49]18031d9a6d03318.png[/img]
D: [img=180x49]18031d9a7810279.png[/img]
A: [img=180x49]18031d9a5698af5.png[/img]
B: [img=180x49]18031d9a616caa6.png[/img]
C: [img=180x49]18031d9a6d03318.png[/img]
D: [img=180x49]18031d9a7810279.png[/img]
举一反三
- 下图所示的输出采样信号的Z变换C(z)为()。[img=440x89]18034a5c5c84961.png[/img] A: [img=180x49]18034a5c6825073.png[/img] B: [img=180x49]18034a5c7479a32.png[/img] C: [img=180x49]18034a5c7ee63b3.png[/img] D: [img=180x49]18034a5c888a64e.png[/img]
- 下图所示的输出采样信号的Z变换C(z)为()。[img=440x89]1802fc9d9732906.png[/img] A: [img=180x49]1802fc9da2265e3.png[/img] B: [img=180x49]1802fc9dad8f6b3.png[/img] C: [img=180x49]1802fc9db8ae72a.png[/img] D: [img=180x49]1802fc9dc499aed.png[/img]
- 下图所示的输出采样信号的Z变换C(z)为()。[img=440x89]1803d436d0b0812.png[/img] A: [img=180x49]1803d436db9375b.png[/img] B: [img=180x49]1803d436e562d44.png[/img] C: [img=180x49]1803d436f0298a7.png[/img] D: [img=180x49]1803d436faafceb.png[/img]
- 下图所示的输出采样信号的Z变换C(z)为()。[img=440x89]18035f793670265.png[/img] A: [img=180x49]18035f7940de63a.png[/img] B: [img=180x49]18035f794ad8a4a.png[/img] C: [img=180x49]18035f79547febe.png[/img] D: [img=180x49]18035f795e33658.png[/img]
- 设随机变量X[img=138x21]17e438ba4537f6f.jpg[/img],则由切比雪夫不等式[img=134x19]17e43eeb4a5ffad.jpg[/img] A: 1/9 B: 4/9 C: 8/9 D: 1