Aerospace Instrument-Making Annotation << Back Onboard meter of height, length and direction of sea waves propagation V.T. Lobach, V.A. Buryak, V.D. Buharin Using the original algorithms experimental model of onboard meter of height length and main direction of sea waves has been designed, made and tested. Radar measurements were accompanied by contact measurements with the help of wave graphic meter, located in the center of the measuring zone. The full-scale experiments show, that rms error of measurement of height and length of sea waves does not exceed 10...12 %, and for the main direction of wave propagation – 12°.