| 摘要 |
The invention relates to a method for regulation of the frequency of signals which are produced in a stationary or moving base station (1) and a flying station (3). The invention is based on the object of specifying a method and a circuit, with the aid of which circuit the signals produced in the base station (1) and in the flying station (3) can be regulated to a common frequency. In the case of the method according to the invention, the frequency of the signals produced in the base station (1) is set to the frequency of the signals produced by the flying station. In order to carry out the method, a circuit (2) is used in the base station (1), which circuit (2) has a frequency generator (5) whose control input is connected to a first mixer (6) via a series circuit consisting of a filter (14) and a converter (8). The signal input of this mixer (6) is connected to two receivers (9, 10), which receive at least two different frequencies (fp, fRP) in order to determine a control signal for the frequency generator (5). The flying station (3) has a frequency generator (40) whose output is connected to at least one mixer (41). The second input of the mixer (41) is connected via a receiver (42) to the receiving antenna (43). The output of the mixer (41) is connected via a filter (44) to the transmitting antenna (45). <IMAGE>
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