发明名称 |
Method and Apparatus for the Compression, Processing and Spectral Resolution of Electromagnetic and Acoustic Signals |
摘要 |
A signal that may be represented by a band limited periodic function m(t) is transformed into its z-domain zeros using characteristics of the signal in the neighbourhood of fades of the signal, namely a bounds of the fades and the depths of the fades. The z-domain zeros are the zeros of the function in the complex plane, and represent local minimums of the function. The z-domain zeros are used to estimate the discrete spectrum of m(t), and the differential phase of m(t) is derived from the envelope of m(t) using the concept of the z-domain zeros. Also, speech is compressed based on the z-domain zeros of a signal m(t) that represents a speech signal, and knowledge of the location of fades is used in interference reduction at single moving antennas by applying a spectral resolution technique during a fade and applying notch filters to the signal to resolve the signal components.
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申请公布号 |
CA2108103(A1) |
申请公布日期 |
1995.04.09 |
申请号 |
CA19932108103 |
申请日期 |
1993.10.08 |
申请人 |
FATTOUCHE, MICHEL;ZAGHLOUL, HATIM |
发明人 |
FATTOUCHE, MICHEL;ZAGHLOUL, HATIM |
分类号 |
H03H17/02;(IPC1-7):H03M7/30 |
主分类号 |
H03H17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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