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|국가/구분||United States(US) Patent 등록|
|발명자 / 주소||
|출원인 / 주소||
|대리인 / 주소||
|인용정보||피인용 횟수 : 21 인용 특허 : 8|
In a system for locating the position of a transmitter, a platform containing an antenna is moved through a measurement path. The frequency received by the antenna is measured at measurement points distributed along a measurement path. The frequency is measured by cross correlating coherent pulses of the received frequency signal. An inertial navigation system on the platform indicates the position of the measurement path. A computer determines estimated locations by non-linear least squares convergence starting from trial locations. The non-linear least...
[ We claim:] [1.] A system for estimating the position of a transmitter transmitting a signal waveform having a frequency in a medium comprising a platform capable of moving through said medium relative to said transmitter, signal receiving means mounted on said platform to receive said signal waveform, computer means to measure the frequency of the signal waveform as received by said signal receiving means at measurement points distributed along a measurement path as said signal receiving means is moved through said measurement path by said platform, co...