发明名称 |
Distortion analyzer for quadrature demodulated data |
摘要 |
Method and apparatus for displaying measures of distortion present at the outputs of a quadrature demodulator. From each of the in-phase and quadrature channels of the demodulator there are acquired n parallel bits, m of these bits being the demodulator data output of the associated channel and (n-m) bits being error bits for the channel. The n bits for each channel are converted to a signal acceptable to a plot display device and applied to orthogonal axes of the device. In addition, an absolute value of the (n-m) error bits for each channel is derived. This absolute value is filtered and displayed, as by a meter, for each channel.
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申请公布号 |
US4627071(A) |
申请公布日期 |
1986.12.02 |
申请号 |
US19840670432 |
申请日期 |
1984.11.09 |
申请人 |
ROCKWELL INTERNATIONAL CORPORATION |
发明人 |
HEAD, MANLEY J.;SMITH, WILLIAM C.;PEPMILLER, PAUL E. |
分类号 |
H04L1/20;(IPC1-7):H04B3/46 |
主分类号 |
H04L1/20 |
代理机构 |
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