一个因果稳定的连续系统，其
的全部极点须分布在复平面的左半平面。()
的全部极点须分布在复平面的左半平面。()
举一反三
- 空气与介质<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/1e6362735d6d4ae5a77aaafe5b5b49c7.png" />的分界面为z=0的平面，已知空气中的电场强度为<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/f8c5f3e89f4d4570a92c23bb118869fb.png" />,则介质中的电场强度<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/f7bb30061e904b39a8d53ad541435c18.png" />：() A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/c1f29b60a07d4d75aa0f7e1c63a75a2f.png" /> B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/74f128e456384ac79b8204c33052cbcc.png" /> C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/c87cbdc5e75c40b4b875455ed5bccd28.png" /> D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/b1117f3f152d413b89e5c221153014a8.png" />
- 下列系统中线性时不变系统是（）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/4b45f35cbb8b49eea328e0f1af3a3101.png" >（<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/3f1f37fe4ba54c4fb69d1be115a88f2d.png" >为常数） B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/481b4d4b98e24b94a2eaa9ec011e0186.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/f0f925fadec648b4b7c35161be6f3a3d.png" >（<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/c10b602726304747bf5fe38a760da1ae.png" >为常数） D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/62c5dee47e9045cca90a53856dc04845.png" >
- 理想不失真传输系统的传输函数H（jω）是()。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/c53311dbea924826a56276a9472741b1.png" > B: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/4f089e5988004320950aab7179fb9c28.png" > C: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/2245b8eb25204e8e966be03821487380.png" >（<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/14618be7a9474fa09351a25e922eb774.png" >为常数） D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/9cba3ab48faa4d8980c79f62bb1f3da4.png" ><img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/64f67bce595243aaa13ded6089b431b1.png" >
- 一个因果稳定的连续系统，其[img=144x90]17d60ae6f86b056.png[/img]的全部极点须分布在复平面的左半平面。()
- 已知某系统的系统函数为<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/61983fc0e7e24edca688b5811738d128.png" >，唯一决定该系统单位冲激响应<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/d414273f7b4e4c059b98fb161abbaf1f.png" >函数形式的是（）。 A: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/61983fc0e7e24edca688b5811738d128.png" >的零点 B: 系统的输入信号与<img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/61983fc0e7e24edca688b5811738d128.png" >的极点 C: 系统的输入信号 D: <img src="https://image.zhihuishu.com/zhs/doctrans/docx2html/202002/61983fc0e7e24edca688b5811738d128.png" >的极点