发明名称 |
SENDAR/MOTTAGARANORDNING FOR ETT DUPLEXT RADIOLENKSYSTEM FOR MIKROVAGOR |
摘要 |
A duplex microwave radio communication and telemetry system for transmitting analog and digital data between fixed stations as well as to mobile stations wherein the microwave oscillator is stabilized by utilizing a free running oscillator which is controlled in frequency with the incoming modulation input and the output of the free running oscillator is supplied to a phase comparator and to a multiplier and the multiplier supplies an output to a mixer which also receives a portion of the input from the microwave oscillator and supplies an input to the phase comparator to provide a control signal for controlling the frequency of the microwave oscillator. |
申请公布号 |
SE440302(B) |
申请公布日期 |
1985.07.22 |
申请号 |
SE19780010238 |
申请日期 |
1978.09.29 |
申请人 |
SIEMENS AG |
发明人 |
1)F * BECKER;2)G * BIETHAN;3)P * KLOEBER |
分类号 |
H04B7/15;B61L25/04;G01N31/22;H03C3/09;H04B1/40;H04B7/00;H04B7/26;H04L27/10;(IPC1-7):H04B7/15 |
主分类号 |
H04B7/15 |
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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