发明公开
- 专利标题: Digitally controlled transversal equalizer
- 专利标题(中): 数字式战士横渡战士。
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申请号: EP83108910.7申请日: 1983-09-09
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公开(公告)号: EP0106136A2公开(公告)日: 1984-04-25
- 发明人: Mattis, William E., Jr. , Wolejsza, Chester, J., Jr. , Uzunoglu, Vasil
- 申请人: COMMUNICATIONS SATELLITE CORPORATION
- 申请人地址: 950 L'Enfant Plaza, S.W. Washington, D.C. 20024 US
- 专利权人: COMMUNICATIONS SATELLITE CORPORATION
- 当前专利权人: COMMUNICATIONS SATELLITE CORPORATION
- 当前专利权人地址: 950 L'Enfant Plaza, S.W. Washington, D.C. 20024 US
- 代理机构: Quinterno, Giuseppe
- 优先权: US417286 19820913; US417753 19820913
- 主分类号: H04L27/00
- IPC分类号: H04L27/00
摘要:
An adaptive equalizer performs equalization at IF, demodulates the input signal and then generates the equalization coefficients at baseband from the demodulated data. Coefficient updating can be done on a non-real time basis and coefficients for individual bursts stored in a coefficient memory for retrieval when the same burst occurs in the next frame, thus obtaining a pseudo-continuous equalization for each burst. In one embodiment, the error signal is derived from demodulated equalized data and correlated with demodulated unequalized data to generate the correlation coefficients, and individual error signals from each channel can be combined into a single composite error signal for correlation purposes.
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