2 results about "Back tracking" patented technology

A Viterbi traceback processing method, system, and apparatus is provided in which a first Viterbi traceback processing operation (MUX 514) is performed on a first survivor path metric (TMV1) by selecting a first output data bit (Ti1) for the first survivor path metric in response to a reverse tracking state (INDEX 0), in which a plurality of Viterbi traceback processing operations (MUX 512, 513) are performed on respective portions of additional survivor path metrics (TMV2A, TMV2B) by selecting candidate data bits (Tn1, Tn2) for the additional survivor path metrics in response to shifted reverse tracking states (INDEX 1), in which a multiplexer (MUX 518) controlled by the first output data bit selects between the candidate data bits to generate an additional output data bit (Ti2) for the additional survivor path metrics, such that Viterbi traceback processing operations are performed in parallel to produce output data bits.

The invention discloses a power equipment data processing method and system based on an optical fiber sensing technology, and relates to the technical field of power equipment monitoring, and the method comprises the steps: extracting abnormal change characteristics from a virtual reference correction table, carrying out the interpretive discrimination through combining with the state of power equipment, respectively writing in an enhancement candidate and a suppression candidate, and generating a double-mark candidate book; performing time undertaking check, spatial adjacency check and parallel arbitration on the double-label candidate book, dynamically distinguishing dominant abnormal entries and standby abnormal entries, and generating a main and standby abnormal hitching list; and performing hierarchical packaging, instruction assignment and trace collection on the main / standby abnormal hooking list, outputting real-time monitoring content, synchronously writing back a tracking processing instruction and a trace record, and generating an optical fiber data processing output set. According to the invention, space-time check and parallel arbitration are realized, and the monitoring accuracy of the power equipment is improved.