Compile a fully comprehensive and detailed lab report from notes - Essay Example

One of the most vivid ways on how it affects electromagnetic waves is how astronomers apply color shift from light waves from astral bodies to determine the speed of these bodies and how far they move from the earth. In a Doppler radar system, a known frequency signal is transmitted from an antenna pointed at a reference object. Another antenna is used to receive the signal reflected back from the reference to determine the Doppler shift of the relevant signal. A radar is represented by a block diagram consisting of an RF (microwave) section, signal processing section, and a a regulated power supply section.

A successful design for a Doppler radar system requires an understanding of; The first principle is that when microwave energy is reflected by a moving target, a shift in frequency occurs. This is principle adopted by all Doppler radars. The frequency shift amount is directly proportional to the target’s velocity which is relative to the radar’s transmitter. The Doppler Shift frequency is given by; The design for the antenna, PCB and circuit design were done through the help of friends. One friend was to work on testing and assembly, the other the proto-type circuit.

I worked on the design of the box. The LCD was connected to the whole circuit by the headers. Issues of concern in the design were power transmission, power reception, frequency, the radar target cross-section, the radar target distance and the speed of light. The dimensions were determined and the radar gain G, established. These activities were captured and completed on the second day. Issues of concern were the radar cross-section, transmission time, and shape of the radar system. The effects of reflection were determined by materials, size and shape of the system.

Radar cross-section determines the amount of reflected radio wave. From the project, the radar cross-section, the minimum range for the radar