Second order complementary global positioning syst
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专利名称：Second order complementary global
positioning system/inertial navigation
system blending filter
发明人：Ronald J. Miller
申请号：US09885621
申请日：20010620
公开号：US06442481B2
公开日：
20020827
专利内容由知识产权出版社提供
专利附图：
摘要：A second-order filter that blends accurate position information from a one source, and velocity information from another source, both suitably scaled, in a second-
order complementary filter. The filter is arranged such that an internal integrator maintains a value that represents the difference in the rate of change of the accurate position information, and the velocity input of the other source. This velocity difference is applied to another integrator outside the filter, whose initial condition is the position error between the two sources to the second order filter. The output of this latter integrator is a correction signal that grows at a rate equal and opposite to the rate of error build-up of position data from the source whose velocity is used in the second order filter. This correction signal is summed with the original position signal. In addition, the output of the second order filter may be used as a highly accurate position signal.
申请人：HONEYWELL INTERNATIONAL INC.
代理人：Loria B. Yeadon
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