摘要： 针对近场系统（near field system）提出了一种新的信号源定位方法——投影定位方法，该方法将采集到的信号映射到感兴趣的空间网格，并且通过能量聚集程度来估计信号源位置。投影定位法对信号源的分布没有限制，可以很容易地实现实时计算和并行计算，并且可以在一定范围内根据具体需要提高估计精度，实现实时目标跟踪。针对合成数据和实际数据进行了算法研究，其结果是鲁棒、准确的。

关键词: 多信号源；投影；定位

Abstract: This paper presents a new algorithm called projection method, which maps the sensor array signals to certain interested space domain,and estimates the signal source positions for near-field sensor array positioning systems. The sensors can be distributed in any way when applying this method. This algorithm can be easily implemented for positioning precision control, target tracking, real-time computing and parallel computing.Synthetic data simulations and field-data results present the robustness and flexibility of the proposed algorithm

Key words: Multiple sources; Projection; Localization