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Leroy Lajoux & Cie Soc
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Leroy Lajoux & Cie Soc
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G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
G01S11/023—Systems for determining distance or velocity not using reflection or reradiation using radio waves using impedance elements varying with distance
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Physics & Mathematics
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Engineering & Computer Science
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General Physics & Mathematics
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Radar, Positioning & Navigation
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Remote Sensing
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Geophysics And Detection Of Objects
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GB1814/25A1924-01-211925-01-21A method of and apparatus for detecting the proximity of the ground for the use of aircraft
ExpiredGB228167A
(en)
Perfeccionamientos en los sistemas de transmisión eléctrica de señales y análogas por medio de corrientes de frecuencia elevada a lo largo de las líneas de transporte de transporte de energía.