一种对固定宽带辐射源的机载单站无源定位方法  

Approach of Airborne Single-station Passive Locating for an Emitter with Fixed Wideband

作　　者：霍光[1] 李冬海[1] 

机构地区：[1]解放军信息工程大学,郑州450002

出　　处：《火控雷达技术》2012年第4期31-35,共5页Fire Control Radar Technology

摘　　要：机载单站无源定位通常采用相位差及其变化率作为观测量,但当信号源为宽带信号时,相位差测向精度很难满足实际需求。由于时差测量精度与信号带宽成反比,离心加速度也可以从宽带信号中获得,因此,提出了一种基于时差、时差变化率和离心加速度信息的宽带信号机载单站无源定位方法,并对定位原理和测距误差了进行分析,最后,仿真验证了该方法的可行性。The airborne single-station passive locating usually uses phase difference and its changing rate as observed quantity, however it is very difficult to meet practical requirements using phase difference direction measurement accuracy when the signal generator is a wideband signal. Since the time difference measurement accuracy is inversely proportional to the signal bandwidth, signal, therefore, a wideband signal airborne the centrifugal acceleration can also be obtained from the wideband single-station passive locating approach based on time difference, changing rate of the time difference and centrifugal acceleration is proposed, and principle of locating and ranging error are analyzed, and finally, the simulated results verify its feasibility.

关 键 词：机载单站无源定位 宽带信号 时差 时差变化率 离心加速度 

分 类 号：TN959.73[电子电信—信号与信息处理]