| 摘要 |
FIELD: instrumentation, determination of coordinates of mobile objects within bounds of working zone. SUBSTANCE: method of determination of coordinates of mobile objects consists in radiation towards object relatively different acoustic signals and electric signal from two points spaced apart to known distance. These signals are received at object, distances from known points of object are found and used to calculate coordinates of object. Harmonic signal modulated by amplitude by set of harmonica low-frequency oscillations is used in the capacity of radiated signals and distance from know points to object is calculated by phase shift between corresponding harmonic components of radiated signals. Approximated distance to object is found by low-frequency component proper of modulating set of frequencies, more precise corrections are determined by higher frequency components. EFFECT: enhanced accuracy of determination of coordinates of mobile objects. |
