发明名称 |
CORRECTING FREQUENCY ERRORS IN FREQUENCY DIFFERENCE OF ARRIVAL GEOLOCATION SYSTEMS |
摘要 |
A frequency correction for frequency difference of arrival geolocation of transmitted target signals may be provided. A frequency of a target signal may be determined at a first collector based upon a first reference timebase source. A frequency of the target signal may be determined at a second collector based upon a second reference timebase source. An observed frequency of a reference carrier signal based upon the first reference timebase source may be determined at the second collector based upon the second reference timebase source. A relative timebase error between the first collector and the second collector may be calculated based upon a difference between the intended frequency of the reference carrier signal and the observed frequency of the reference carrier signal. A corrected frequency difference for the target signal may be calculated based upon the relative timebase error and a proportional scaling factor. |
申请公布号 |
US2014104108(A1) |
申请公布日期 |
2014.04.17 |
申请号 |
US201314053970 |
申请日期 |
2013.10.15 |
申请人 |
ZETA ASSOCIATES, INC. |
发明人 |
HOLFORD JOHN M.;WILLIAMS JAMES M.;GLIDEWELL MICHAEL E. |
分类号 |
G01S1/02 |
主分类号 |
G01S1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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