发明名称 |
PSK detection using an IFM receiver |
摘要 |
The apparatus detects the presence of long or short pulse phase shift keyed (PSK) modulated signals and determines the underlying clock frequency and modulation code associated with such signal, in real time, using an instantaneous frequency measurement (IFM) receiver as its signal source, without affecting the band-width or sensitivity of this receiver. It monitors the output of the IFM correlators for transients which occur in the correlator's outputs when a PSK signal is present. Logic circuits are used to declare the PSK signal is present, determine its clock rate, a record the modulation or total number of pulses.
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申请公布号 |
US4860318(A) |
申请公布日期 |
1989.08.22 |
申请号 |
US19880215662 |
申请日期 |
1988.07.06 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE |
发明人 |
SHAW, RUDY L.;TSUI, JAMES B. Y.;HEDGE, JR., JAMES N. |
分类号 |
H04L27/227;H04L27/233 |
主分类号 |
H04L27/227 |
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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