SPECTRAL METHOD FOR PROCESSING SIGNALS OF A HIGH-ACCURACY LASER RANGER
A. V. Klimov, V. G. Glavnyi, G. V. Bakakin, V. G. Meledin
Kutateladze Institute of Thermophysics, SB RAS, pr. Lavrent'eva 1, Novosibirsk 630090
Keywords: лазерный дальномер, частотная модуляция, спектральный анализ, непараметрическое оценивание, алгоритм центра масс, окно Гаусса, повышение точности, laser ranger, frequency modulation, spectral analysis, nonparametric estimation, center of mass algorithm, Gauss window, improving accuracy
Abstract
A spectral method for determining the signal frequency and readings of a laser ranger with a frequency modulation of the reference channel is proposed based on signal pre-processing with a Gauss window and calculation of the center of mass of its spectral power density. Numerical modeling and experiments with a frequency modulation band of width 5-20 MHz band have shown that this method provides an order of magnitude better accuracy than the conventional methods of spectral analysis.
|
