Doppler Speed and Drift-angle Meters for AircraftIn the book are expounded design principles of different Doppler speed and drift-angle meters for aircraft (GSDA) applied in practice, theoretical bases of operation of Doppler meters and peculiarities of construction and operation of separate units of these meters: antennas, UHF channels, Doppler frequency indicators. Furthermore, questions of calibration and adjustment of meters are considered, examples of construction of block diagrams of GSDA are given, and information about complex use of Doppler meters with navigational computers and inertial systems is included. The book is designed for auditors and students of radiotechnical faculties of aviation institutions and can be useful for engineers and technicians occupied with the application of aircraft radio-navigation equipment. (Author). |
Common terms and phrases
accuracy of measurement altitude amplifier antenna system aperture applied array balanced modulator circuit coefficient of backscatter component of speed components of total corresponding dead reckoning decrease depends depicted in Fig directivity pattern Doppler frequency indicator Doppler meters Doppler signal double-beam drift angle duplexer ensure equal factor flight formula four-beam frequency F frequency meter frequency mistuning frequency modulation frequency of oscillations frequency-independent ground speed groundspeed GSDA GSDA's heterodyning horizontal increase input intermediate frequency klystron Let us assume Let us consider Let us note linear local oscillator located low-frequency magnitude mid frequency mistuning mixer multi-slot waveguides navigation computer navigation systems noises obtained operation oscillator frequency phase detector planar plane pulses quency radiators reflected signal-to-noise ratio slot waveguides slotted-waveguide antennas speed of aircraft stabilization system of coordinates total speed tracking circuit transmitter transverse turn vector components vertical component voltage voltage of frequency wave width zero