摘要
本文较详细地介绍了在无线电测向模拟实习室建设中所采用的几项仿真新技术。用地理坐标模拟一个实际测向网；用两个并联乘法器电路模拟一付全方位测向天线阵：用正、余弦低频电压控制上述两个乘法器电路模拟任意被测信号的真实方位；用ＸＢ４４标准信号源模拟任意被测信号的全频段变化。这几项仿真新技术的应用，不但使模拟测向实习室的功能进一步齐金，满足了测向教学需要，取得了明显训练效益，而且为院校节约了大量的训练实习经费。此项应用再次证明，广泛采用电子、数字和声象等仿真新技术，将为院校实习、实验室教学改革，为部队进行实战训练找到一条新路子。
This paper presents in detail some new simulation techniques, which can be applied tothe building of a radio direction finding laboratory, The techniques are the simulation ofan actual direction finding net by means of geographical coordinates, the simulation of anall-round direction finding antenna matrix by use of two parallel multipller circuits,theslmulation of the actual direction of any detected signal by using sine-cosine low frequencyvoltage to monitor the above-mentioned circuits, the simulation of the full frequencyrange changes in any detected signals by means of the XB44 standard signal source. The ap-plication of these new techniques will greatly facilitate the simulated direction flnding prac-tice and cut down the training cost. These simulation techniques have Droved to be usefuland practical in the study of radio direction finding.
关键词
无线电测向
仿真新技术
测向网
天线阵
radio direction finding, simulation techniques, direction finding net, an-tenna matrix, detected signals
