| 摘要 |
PROBLEM TO BE SOLVED: To provide a processing module for monitoring a horizontal delay gradient in satellite signals.SOLUTION: A processing module 100 includes a dual processing satellite differencing module 110, a double differencing module 120, and a gradient estimator module 130. The dual processing satellite differencing module is operable to: receive carrier phase measurements for at least two satellites from at least two reference receivers; implement a first processing mode to normalize first satellite differences between +λ/2 and -λ/2; implement a second processing mode configured to normalize second satellite differences between 0 and λ; and select, for further processing, either of data indicative of the first satellite differences processed according to the first processing mode, and data indicative of the second satellite differences processed according to the second processing mode. The gradient estimator module estimates magnitude of the horizontal delay gradient. |
