Written in English
|Statement||by Odia E. Howe, Jr|
|The Physical Object|
|Pagination||85 leaves ;|
|Number of Pages||85|
Magnetic modulator design for a pulsed radar - CORE Reader. This report summarizes the design of a 25kW peak power pulse modulator for an airborne medium-range weather radar. It is the purpose of the modulator to collect and store energy over a certain time period and to form this energy into a short, high-power : Eckard F. Natter. In this work, the design of a pulsed magnetic field generator, with user-selective pulsed modulation frequency is described. The ability to operate at various frequencies (single-frequency below 10 MHz) makes the system valuable to several areas such as medical treatments and pulsed switching systems. In this work, the pulsed magnetic field generator is designed to create localized field Author: N. Prabhu Gaunkar, W. Theh, R. J. Weber, M. Mina. cathode pulsed and grid/mod-anode pulsed radar systems. There are two major benefits to the radar system from use of these solid state switch modules. The first is improved transmitter performance, with a wider range of operating parameters (pulsewidth, PRF, pulse agility, and pulse-to-pulse consistency). The second is the.
Book 1 “Radar Basics” explain the basic operation of a pulse radar system; define range, bearing, and altitude as they relate to a radar system; time of electro-magnetic waves to a metal object (ship) and back. A calculation of the distance is thus possible. This is the first practical radar test. Radar Functions • Normal radar functions: 1. range (from pulse delay) 2. velocity (from Doppler frequency shift) 3. angular direction (from antenna pointing) • Signature analysis and inverse scattering: 4. target size (from magnitude of return) 5. target shape and components (return as a function of direction) 6. moving parts (modulation of. Block Diagram of Pulse Radar. Pulse Radar uses single Antenna for both transmitting and receiving of signals with the help of Duplexer. Following is the block diagram of Pulse Radar − Let us now see the function of each block of Pulse Radar − Pulse Modulator − It produces a pulse-modulated signal and it is applied to the Transmitter. • Pulse-Pulse Regulation: Pulse Width: electronically selectable from 3 to 10 µS (no access to modulator is required to change pulse width) • Efficiency: Approx. 80 percent, line input to pulse output • Input power: V, 3 phase, 50/60 Hz, 50 KVA max. • No high voltage DC power is used.
operation of a simple pulse radar system. B. The student will know the following terms: pulse width, pulse repetition frequency, carrier frequency, peak power, average power, and duty cycle. C. The student will know the block diagram of a simple pulse radar system . With above methods, A magnetron modulator with a peak output voltage of 48 kV, a pulse width of ~μs, a repetitive frequency of 20~ Hz, a top-droop of less than 1% has been designed, and. Radar Modulator. Radio frequency energy in radar is transmitted in short pulses with time durations that may vary from 1 to 50 microseconds or more. In order to generate this short pulse of high power, a special modulator is required which generates a high voltage for . modulator is needed to produce this impulse of high voltage. The hydrogen thyratron modulator is the most common radar modulator. It employs a pulse-forming network that is charged up slowly to a high value of voltage. The network is discharged rapidly through a pulse transformer by the thyratron keyer tube to develop an output pulse, The shape.