| 摘要 |
An arrangement is provided for locating and identifying objects using holographic techniques. Improvements are achieved by array configuration and particularly with the use of a plurality of arrays to provide different types of information related to the same object. In one embodiment, a high resolution narrow field-of-view array is provided in combination with a low resolution wide field-of-view array. The low resolution array resolves the ambiguity for object location and the high resolution array permits object identification; wherein the combination of a high resolution narrow field-of-view array and a low resolution wide field-of-view array provides significant advantages over the conventional high resolution wide field-of-view array. A general purpose high resolution wide field-of-view array may be provided for obtaining desired information. In a mode requiring high computational rates, portions of the general purpose array may be selected to provide specific information. For example, a high resolution narrow field-of-view sub-array and a low resolution wide field-of-view sub-array may each be part of the general purpose array, selected as a limited set of array points. Processing information from the sub-arrays minimizes the amount of information that must be processed and therefore significantly increases array processing speed. A frequency control arrangement is also provided for controlling resolution and field-of-view with the transmitted signal frequency. A signal processing and memory arrangement using charge coupled devices is further provided which are generally useable for signal processing and memory operations and may be used in a preferred embodiment of the present invention. CROSS REFERENCE TO RELATED APPLICATIONS |
