| 摘要 |
The method involves estimating the systematic errors U1, U2 of each radar system R1, R2 in relation to the true position determining the differences DELTA ZA, DELTA ZB between the positions measured by the two radar systems R1, R2 for two distinct points that they observe simultaneously, and to subject these differences in position to a recursive filtering of the Kalman-Bucy type of order zero having a stationary type model equation. The figure represents an embodiment of this filter in two successive loops, the first placed at the output with an adder 10 having a feedback loop through a register 11 delivering the last estimated value U(K-1) of a vector having as its components the systematic errors U1, U2; and the second placed at the input, receiving the vector DELTA Z(k) whose components are the last measured values DELTA ZA, DELTA ZB of the differences and comprising a measurement prediction filter 12 and a correction estimation filter 14. <IMAGE>
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