公开(公告)号：US3852754A

公开(公告)日：1974-12-03

申请号：US18246171

申请日：1971-09-21

申请人： LITTON SYSTEMS INC

发明人： WORRELL E

IPC分类号： G01S3/48 ,  G01S5/02

CPC分类号： G01S3/48

摘要： A digital direction finder system for radio waves in which the individual bits of the code indicating direction are obtained by comparing and successively partially resolving errors in the digitized phase angle displacement indicated by plural pairs of antennas having progressively different spacing between the respective pairs. The spacing between the closest pair of antennas is more than one-half of the wavelength so that larger and higher gain antennas may be employed. The system may be operated over a wide range of frequencies where the highest frequency may be many times greater than the lowest frequency.

摘要翻译： 一种用于无线电波的数字取向器系统，其中通过比较并连续地部分地分辨由在各对之间具有逐渐不同的间隔的多对天线指示的数字化相位角位移中的误差而获得码指示方向的各个比特。 最近的一对天线之间的间隔大于波长的一半，因此可以采用更大和更高的增益天线。 该系统可以在宽频率范围内操作，其中最高频率可能比最低频率大许多倍。