Systems determining presence of a target (based on relative movement of target G01S13/56)

Full Title

Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified > Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems > Systems determining presence of a target (based on relative movement of target G01S13/56)