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This paper presents a new multipath estimation method for GPS signals that suppresses positioning error caused by multipath signals whose number is unknown. We also propose a novel technique in converting a C-A code into a shorter code, which saves 98 percent of memory necessary for the multipath estimation while preserving accuracy in code delay estimation. Results of our numerical simulation show...
This paper presents a torque estimation method for a reciprocating engine from crank sensor signals. The method calculates angular velocity and acceleration of an engine crankshaft utilizing smoothed implicit derivatives from crank sensor samples. Then crankshaft torque is calculated through the motion equations of an engine. Combustion torque, which contains useful information for engine control,...
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