探测与控制学报
探測與控製學報
탐측여공제학보
Journal of Detection & Control
2015年
5期
1-6
,共6页
传感器网络%到达时间%测向定位%声测
傳感器網絡%到達時間%測嚮定位%聲測
전감기망락%도체시간%측향정위%성측
sensor networks%time difference of arrival%direction-finding localization%sound ranging
针对声源被动测向的传统方法存在精度低和结构单一的问题，提出了基于短基线传感器网络的测向方法。该方法根据声信号到达不规则排列的传感器节点之间时间差，采用最小二乘原理计算声源方位。通过火炮发射和炮弹炸点的实测声源试验数据表明，短基线传感器网络比固定阵型的传统阵列具有更好的定向精度。
針對聲源被動測嚮的傳統方法存在精度低和結構單一的問題，提齣瞭基于短基線傳感器網絡的測嚮方法。該方法根據聲信號到達不規則排列的傳感器節點之間時間差，採用最小二乘原理計算聲源方位。通過火砲髮射和砲彈炸點的實測聲源試驗數據錶明，短基線傳感器網絡比固定陣型的傳統陣列具有更好的定嚮精度。
침대성원피동측향적전통방법존재정도저화결구단일적문제，제출료기우단기선전감기망락적측향방법。해방법근거성신호도체불규칙배렬적전감기절점지간시간차，채용최소이승원리계산성원방위。통과화포발사화포탄작점적실측성원시험수거표명，단기선전감기망락비고정진형적전통진렬구유경호적정향정도。
As the traditional direction-finding method of passive sound source has the problem of low precision and fixed structure,a direction-finding method based on short baseline sensor network was proposed.According to the time difference of arrival (TDoA)measurements of a sound signal among any sensor nodes with random locations,the least square technique was adopted to compute the bearing of source souce.Practical experimental data of the artillery fire and burst point in the true environment showed that the short baseline sensor network had a better direction-finding ability compared with the traditional array of fixed shapes.
