Test system for measuring frequency response and dynamic range on cable plant

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	Test system for measuring frequency response and dynamic range on cable plant
其他题名	Test system for measuring frequency response and dynamic range on cable plant
	WILLIAMS, THOMAS H.
	2002-02-05
专利权人	WILLIAMS THOMAS H.
公开日期	2002-02-05
授权国家	美国
专利类型	授权发明
摘要	A test system for measuring a frequency response of a signal path 148 by transmitting a short duration burst test signal 234 from a remote point 152, capturing an impaired burst test signal 432 on a digital signal acquisition unit 416, and analyzing the received signal by digitally processing it with an unimpaired burst test signal 434. A dynamic range test can also be performed with the same burst test signal by removing the energy in a part of the frequency band with a notch filter 232, and then increasing the power of the burst test signal level until non-linear distortion occurs. The distortion products will fill-in the notch, allowing the clipping threshold of the signal path to be measured. A burst trigger signal 244 generated by the transmitter device 201 causes a digital signal acquisition unit to acquire an impaired burst test signal.
其他摘要	一种测试系统，用于通过从远程点152发送短持续时间突发测试信号234，在数字信号获取单元416上捕获受损突发测试信号432，并通过数字分析接收信号来测量信号路径148的频率响应利用未受损的突发测试信号434处理它。通过用陷波滤波器232去除部分频带中的能量，然后增加突发测试的功率，也可以用相同的突发测试信号执行动态范围测试。信号电平直到发生非线性失真。失真产物将填充陷波，允许测量信号路径的限幅阈值。由发送器设备201生成的突发触发信号244使数字信号获取单元获取受损的突发测试信号。
申请日期	1997-12-06
专利号	US6344749
专利状态	失效
申请号	US08/999912
公开（公告）号	US6344749
IPC 分类号	G01R31/02 \| H04B17/00 \| H05K9/00 \| G01R31/00 \| G01R29/08 \| G01R27/00
专利代理人	-
代理机构	YOUNG, JAMES R.
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/34459
专题	半导体激光器专利数据库
作者单位	WILLIAMS THOMAS H.
推荐引用方式 GB/T 7714	WILLIAMS, THOMAS H.. Test system for measuring frequency response and dynamic range on cable plant. US6344749[P]. 2002-02-05.

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