The filtering means which administer primary spline filter treatment vis-a-vis the carrier phase data which is acquired the GPS cycle slip automatic amendment device

摘要

PROBLEM TO BE SOLVED: To provide a means, a method and a program for automatically compensating a GPS cycle slip, which accurately and economically sense a cycle slip of a carrier wave phase in a GPS signal, rapidly calculate a compensation value, compensate carrier wave phase data and enable a precise positioning and navigation to be continuously executed.;SOLUTION: The carrier wave phase data of the GPS signal received by a GPS receiving section 10 is subjected to a primary spline filtering process implemented in an automatic compensation program being executed by an MPU 21 in an automatic compensation apparatus 20 for the GPS cycle slip which is connected at its outer side. Then, observation phase data are compared with prediction phase data before update, thereby sensing the occurrence of a cycle slip phenomenon, and the compensation value is calculated, and the carrier wave phase data are automatically compensated by using the compensation value. Alternatively, the automatic compensation apparatus 20 for the GPS cycle slip can be built in the GPS receiver.;COPYRIGHT: (C)2007,JPO&INPIT