High-precision time hack synchronizing method based on CRIO platform
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The invention discloses a high-precision time hack synchronizing method based on a CRIO platform. A high-precision time hack module receives inter-range instrumentation group (IRIG)-B coding signals sent by a global positioning system (GPS) receiving machine and processes the IRIG-B coding signals to obtain 10ms pulse signals. The CRIO platform obtains the 10 ms pulse signals, then the CRIO platform uses the 10 ms pulse signals to correct count value of crystal oscillating frequency inside the CRIO platform, and finally the CRIO platform uses the corrected count value to trigger sampling. Purposes of high-precision time hack synchronization and multi-channel high-speed synchronous collecting are achieved. A timing compensation algorithm and relevant software are achieved through LabView programming. The high-precision time hack synchronizing method can effectively overcome the defect that the CRIO platform rear panel crystal oscillation precision is not high and achieves multi-channel high-precision time hack synchronous collecting on the CRIO platform.