monitoring the object which uses Arduino microcontroller, ultrasonic sensor, and radar module. The radar will get the distance from the object and ultrasonic sensor will ensure to avoid the accidents that may occur by the clash between the train and objects. Ultrasonic sensors work by emitting sound waves at a

Proposed airborne surveillance radar system can detect, locate, track, and classify low-profile, low-altitude targets: from traditional fixed and rotary wing aircraft to non-traditional targets...

Oct 28, 2020 · Objective: One of the current limitations to detect moving object. The current paper aims to fill the gap in the literature by using a radar system in the identification of moving object,...

Obstacle detection is finding an object or obstacle on a road. Obstacle avoidance use the previously detected obstacles and adjusts itself according to the motion model. In this paper, review of Obstacle detection and avoidance systems developed in the last few years is discussed.

A radar system operates in a way that it radiates electromagnetic energy into space and detects various aspects related to objects by analysing the echo generated when the radiated energy gets re-radiated by the object.

Radar Block Diagram • This receiver is a superheterodyne receiver because of the intermediate frequency (IF) amplifier. (Similar to Figure 1.4 in Skolnik.) • Coherent radar uses the same local oscillator reference for transmit and receive.

Basic Radar System Block Diagram consists of a transmitter and a receiver, each connected to a directional antenna. The transmitter is capable of sending out a large UHF or microwave power through the antenna.

THE LASER RADAR SENSOR - The pulse-radar method is used, i.e. a short pulse (in 50 ns) infrared laser beam is transmitted to the target vehicle and the distance between the two vehicles is determined the time difference between transmitted and received laser beams. A schematic diagram of the laser radar sensor is shown in Fig. 3.

The obstacle avoidance system has been designed according to the block diagram shown in Figure 4. The system has four input variables that are navigation speed (the actual forward speed...

May 24, 2021 · All large ships at sea carry one or more radars for collision avoidance and navigation. In space, radars are used for spacecraft rendezvous, docking, and landing, as well as for remote sensing of the earth’s environment and planetary exploration. A basic radar block diagram is shown in Fig. 1.