发明名称 |
Frequency spectrum analyzer |
摘要 |
A system is disclosed for analyzing in real time the frequency spectrum of an incoming signal of unknown frequency characteristics. This is accomplished by first generating a train of sampling pulses in repetitive frames, where each frame of pulses represents a series of cross-correlation functions in terms of a predetermined number of sampling intervals and a predetermined number of harmonics. These sampling pulses are then multiplied with the incoming signal to generate a train of discrete sampled outputs. The discrete sampled outputs from the multiplying means are accumulated in an accumulator and a frequency domain output signal is produced for each frame of sampling pulses.
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申请公布号 |
US4031462(A) |
申请公布日期 |
1977.06.21 |
申请号 |
US19750593830 |
申请日期 |
1975.07.07 |
申请人 |
MOTOROLA, INC. |
发明人 |
BOUVIER, DAVID WILLIAM;GREEN, WILLIAM GEARY;MOORE, RANDOLPH GAYLON |
分类号 |
G01R23/16;(IPC1-7):G01R23/16 |
主分类号 |
G01R23/16 |
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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