公开(公告)号：US3717843A

公开(公告)日：1973-02-20

申请号：US3717843D

申请日：1970-03-06

Applicant: BENDIX CORP

Inventor： FARRAH H ,  MAROM E ,  MUELLER R

IPC: G01S15/89 ,  G01S17/87 ,  G01S17/89 ,  G03H3/00 ,  G01S9/66

CPC classification number: G01S17/87 ,  G01S15/897 ,  G01S17/89 ,  G03H1/0443 ,  G03H3/00

Abstract: A holographic system capable of forming images of both stationary objects and objects that are moving with respect to the holographic system is described which includes means for irradiating an object with coherent, long wavelength radiation such as coherent acoustic or radio waves. The system also includes a receiving surface for receiving this radiation from the object and producing a plurality of electrical signals, each with a phase and amplitude determined by the nature of the object irradiated and equal to the phase and amplitude of the radiation received from the object at a particular position on the receiving surface. A hologram is produced from these signals by processing apparatus including gating means responsive to an electric reference signal which allows only those electric signals representing radiation received during a selected time interval to be further processed and used in forming the hologram. This time interval is selected considering the velocity of the relative movement between the object and the receiving means so that there will not be enough motion to degrade the hologram during the time interval in which signals which are actually used to form the hologram are received.

Abstract translation: 描述了能够形成相对于全息系统移动的静止物体和物体的图像的全息系统，其包括用相干，长波长辐射如相干声或无线电波照射物体的装置。 该系统还包括用于从物体接收该辐射的接收表面，并且产生多个电信号，每个电信号具有由所照射的物体的性质确定的相位和幅度，并且等于从物体接收的辐射的相位和幅度 在接收表面上的特定位置。 由这些信号通过处理装置产生全息图，该装置包括响应于电参考信号的选通装置，该参考信号仅允许表示在选定的时间间隔期间接收的辐射的电信号被进一步处理并用于形成全息图。 考虑到物体和接收装置之间的相对运动的速度来选择该时间间隔，使得在接收到实际用于形成全息图的信号的时间间隔期间不会有足够的运动来降低全息图。

公开(公告)号：US3740749A

公开(公告)日：1973-06-19

申请号：US3740749D

申请日：1971-02-22

Applicant: BENDIX CORP

Inventor： MAROM E

IPC: G01S1/02 ,  G01S19/19 ,  H01Q3/02 ,  G01S3/16

CPC classification number: H01Q3/02 ,  G01S1/02

Abstract: A system for increasing the field of view of an array of detectors is described. The system also unambiguously identifies the location of a target with respect to the array. The increase of the field of view and the unambiguous locating of the target are obtained by oscillating the detector array about an axis which passes through the plane of the detector array. The angle of oscillation is related to the wavelength of the detected radiation and the separation of the detectors so that a target falling within the main lobe or either side lobe is detected and unambiguously located.

Abstract translation: 描述了一种用于增加检测器阵列的视场的系统。 系统还明确地标识目标相对于阵列的位置。 通过使检测器阵列围绕穿过检测器阵列的平面的轴振荡来获得视场的增加和目标的明确定位。 振荡的角度与检测到的辐射的波长和检测器的分离有关，使得落在主瓣或任何旁瓣内的目标被检测和明确地定位。