摘要
针对塔康系统输出参数的传统测量方法测量误差大、抗干扰能力弱的问题,根据塔康信号的特征分别提出了基于正弦曲线拟合测角和基于相关接收测距的塔康系统输出参数精确测量方法,计算了传统方法与精确测量方法的测量误差,定义了被测信号的品质因数,通过它可确定测量值的可信度。通过仿真,比较了不同信噪比情况下传统测量方法和精确测量方法的性能,研究了当被测信号发生畸变时,品质因数的变化情况。仿真结果表明精确测量方法明显提高了塔康系统的测量精度和抗干扰能力,品质因数较好地反映了信号的畸变情况。
The traditional method for measurement of TACAN output parameters has the problems of large error and weak anti-jamming performance. An accurate measurement method was put forward according to the characteristics of TACAN impulse signal, which implemented angle measurement based on sinusoidal curve fitting and distance measurement based on correlation reception. Measurement error of traditional method and the accurate measurement method was calculated out. The signal＇s quality factor which can confirm the reliability of the measurement value was defined. Simulations were carried out under different SNRs to compare the performance of the traditional method and the new method, and to analyze the variation of quality factor when the signal had a distortion. The result proved that the new method improves the measurement precision and anti-jamming performance greatly, and the quality factor reflects the signal＇s distortion well.
出处
《电光与控制》
北大核心
2010年第7期78-82,91,共6页
Electronics Optics & Control
基金
陕西省自然科学基金资助(SJ08F06)
关键词
塔康系统
曲线拟合
相关接收
测量
品质因数
TACAN
curve fitting
correlation reception
measurement
quality factor
