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为了研究传感器的运动频率对目标定位的影响,运用传感器与目标之间的距离信息,提出一种能在连续时间内进行目标定位的线性自适应算法。借助定位算法的稳定性条件,理论分析了传感器的频率对目标定位的作用。进一步通过Matlab仿真,对比研究了不同频率的传感器对固定目标以及持续漂移目标的定位效果。实验表明,传感器的频率会影响目标定位的时间以及定位结果的准确性;高频率的传感器可以减少目标定位所需的时间;在三维空间中,当传感器在每个坐标方向上的振幅相同时,为取得准确的定位结果,传感器的频率分量不能完全相同。对持续漂移的目标进行准确定位,传感器的运动频率要比目标漂移频率高。
In order to study the effect of the sensor’s motion frequency on the target location, a linear adaptive algorithm that can locate the target in continuous time is proposed by using the distance information between the sensor and the target. With the help of the stability conditions of the localization algorithm, the effect of the sensor frequency on the target location is analyzed theoretically. Further through the Matlab simulation, comparatively studied the positioning effect of different frequency sensors on fixed target and continuous drift target. Experiments show that the frequency of the sensor affects the target positioning time and the accuracy of the positioning result. The high-frequency sensor can reduce the time required for the target positioning. In the three-dimensional space, when the amplitude of the sensor in each coordinate direction is the same, In order to obtain accurate positioning results, the frequency components of the sensor can not be exactly the same. Accurate positioning of the target for continued drift, the sensor movement frequency than the target drift frequency higher.