摘要
塔康是近程无线电导航系统,主要为空中飞行目标提供方位和斜距导航信息。塔康信标台全向发射脉冲幅度调制信号,隐含空中目标相对于信标台的方位和距离信息。根据塔康信号包络的特征提出了采用线性组合的思想来处理方位信号的方法。提出用自适应滤波和最小二乘曲线拟合的方法来实现线性组合。2种算法适应于不同的工作环境,都能够满足塔康导航系统对方位角处理误差2．5°的要求。
TACAN is a short-range radio navigation system, designed to provide the bearing and distance information for the flying objects. TACAN beacon transmits pulse amplitude modulation signals in all direction, including bearing and distance information relative to the beacon. According to the character of TACAN signal, an algorithm based on linear combination to process the bearing signal is discussed. Adaptive filtering and RLS curve fitting are discussed.These two algorithms can be applied in different surroundings.Both meet the requirement of an error of 2.5 degree in TACAN.
出处
《无线电工程》
2006年第11期38-40,共3页
Radio Engineering
