摘要
雷达导引头对有加速度的目标进行探测,采用传统的FFT相关检测会导致目标能量在多普勒通道上的扩散,使导引头的检测性能下降,通过补偿加速度可以将分散的目标信号能量汇聚在较窄的频带内。将从工程应用角度,提出一种加速度盲补偿技术,首先分析加速度对PD信号检测的影响;接着分析补偿原理,并以此建立加速度盲补偿的数学模型;最后对影响补偿效果的参数进行分析。
When radar seeker detects the accelerating lead to the energy of target spread on the Doppler channe target, 1, mak traditional FFT correlation detectioncan ing the detection performance of seeker drops. The compensated acceleration is used to concentrate dispersive energy of target on narrow frequency band. From the perspective of engineering application, a kind of blind acceleration compensation technology is put forward. Firstly the influence of the acceleration of PD signal detection is analyzed ; thenthe analysis of the compensation principle is given, anda mathematical model of blind acceleration compensa- tion is built; finallythe parameters of affecting the compensation effect are analyzed
出处
《现代防御技术》
北大核心
2015年第6期112-118,共7页
Modern Defence Technology
关键词
加速度盲补偿
微弱信号检测
长时间积累
线性调频
PD信号
雷达导引头
blind acceleration compensation
weak signal detection
long time accumulation
linear frequency modulation
PD signal
radar missile seeker
