| 摘要 |
An emitter locator for locating an emitter (14) transmitting an emitter signal includes a plurality of scatterers (12a-12h) and a base station (50). The plurality of scatterers are located at predetermined positions, where each scatterer (figure 2) includes a modulator configured to modulate an electrical signal on an antenna and configured to receive the emitter signal and to modulate the emitter signal to generate a scattered signal. The base station (figure 3) is configured to receive a composite signal containing the emitter signal and a plurality of the scattered signals, where the base station includes a processor (56) configured to separate the scattered signals from the composite signal and to identify relative power levels of the scattered signals to determine a location of the emitter. Advantages of the invention include the ability to locate emitters in an efficient and cost effective manner by using scatterers and a base station.
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