Definition of Terms

In this part, the technical terms are defined which have been used throughout the study.

Aerial. It refers to a performed maneuver using an airplane: taken or seen from an airplane.

Altitude. As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object.

Antenna. This is usually a metallic device (as a rod or wire) used for radiating or receiving radio waves.

Battery. It is a device that produces electricity from a chemical reaction

Bolt. It refers to a fastener consisting of a threaded pin or rod with a head at one end, designed to be inserted through holes in assembled parts and secured by a mated nut that is tightened by applying torque.

Camera. This is an apparatus for taking photographs, generally consisting of a lightproof enclosure having an aperture with a shuttered lens through which the image of an object is focused and recorded on a photosensitive film, plate, or sensor.

Capacity. It is the ability to receive, holds, or absorb.

Carbon fiber. This is an alternatively graphite fiber, carbon graphite or CF, is a material consisting of fibers about 5–10 μm in diameter and composed mostly of carbon atoms. 

Channel. It refers to a specified frequency band for the sending and receiving of electromagnetic signals, as for television signals.

ESC. It is a device that regulates the amount of power that goes to the electric motor.

 Flight Control. It is a control from ground stations of airplanes in flight by means of messages transmitted to the pilot electronically.

Frame. This is an open structure that gives shape and support to something, such as the transverse stiffening ribs of a ship's hull or an aircraft's fuselage or the skeletal beams and uprights of a building.

GPS (Global Positioning System). It is a radio navigation system that allows land, sea, and airborne users to determine their exact location, velocity, and time 24 hours a day, in all weather conditions, anywhere in the world.

 Hover. It refers to the process by which an object is suspended by a physical force against gravitation, in a stable position without solid physical contact.

Infrared. Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometers (nm) to 1 mm.

Kv (kilovolt). It is a unit of potential equal to a thousand volts.

Lens. A lens is an optical device which transmits and refracts light, converging or diverging the beam.

Lift. It refers to the power or force available or used for lifting.

Load. It is the weight or mass that is supported.

Lithium-ion polymer batteries. Polymer lithium ion or more commonly lithium polymer batteries (abbreviated Li-poly, Li-Pol, LiPo, LIP, PLI or LiP) are rechargeable (secondary cell) batteries.

Meter (m).  It is the basic unit of length in the metric system, it is equal to 39.37 inches.

Millimeter (mm). This is a unit of length equal to 1/1000 of a meter, it is equivalent to 0.03937 inch.

Motor. It refers to device that converts any form of energy into mechanical energy, especially an internal-combustion engine or an arrangement of coils and magnets that converts electric current into mechanical power.

Nut. It is a small block of metal or wood with a central, threaded hole that is designed to fit around and secure a bolt or screw.

Parachute. It is an apparatus used to retard free fall from an aircraft, consisting of a light, usually hemispherical canopy attached by cords to a harness and worn or stored folded until deployed in descent.

Payload.  It refers to the total weight of passengers and cargo that an aircraft carries or can carry.

Pixel. It is a physical point in a raster image or the smallest addressable element in a display device; so it is the smallest controllable element of a picture represented on the screen.

Propeller. It refers to machine for propelling an aircraft or boat, consisting of a power-driven shaft with radiating blades that are placed so as to thrust air or water in a desired direction when spinning.

Real-time video. It implies that there is no delay at the receiving side, or at most, imperceptible delays.

Receiver. It pertains to a device, such as a part of a radio, television set, or telephone, that receives incoming radio signals and converts them to perceptible forms, such as sound or light.

Reconnaissance. It refers to an inspection or exploration of an area, especially one made to gather military information.

RF remote control. A handheld, wireless device used to operate audio, video and other electronic equipment using radio frequency transmission is called an RF remote control.

 Robot. A mechanical device that sometimes resembles a human and is capable of performing a variety of often complex human tasks on command or by being programmed in advance is known as a robot.

 RPM. (Revolutions per Minute) With electric and electronics devices, RPM measures the rotational speed of the motor's spindle.

Shaft. It is a rotating or oscillating rod that transmits motion and torque, as a ship's propeller shaft or the drive shaft of an automobile.

Surveillance. It refers to a systematic observation of aerospace, surface, or subsurface areas, places, persons, or things, by visual, aural, electronic, photographic, or other means.

Tilting. It is a cinematographic technique in which the camera is stationary and rotates in a vertical plane (or tilting plane). A rotation in a horizontal plane is known as panning. Tilting the camera results in a motion similar to someone nodding their head "yes" or to an aircraft performing a pitch rotation.

Transmitter. It pertains to an electronic device that generates and amplifies a carrier wave, modulates it with a meaningful signal derived from speech or other sources, and radiates the resulting signal from an antenna.

Voltage. It refers to a measure of the difference in electric potential between two points in space, a material, or an electric circuit, expressed in volts.

Volt. The International System unit of electric potential and electromotive force, equal to the difference of electric potential between two points on a conducting wire carrying a constant current of one ampere when the power dissipated between the points is one watt.

Wattage. It is a amount of power, especially electrical power, expressed in watts or kilowatts.

Watt. It is an International System unit of power equal to one joule per second.

Wire. A usually pliable metallic strand or rod made in many lengths and diameters, sometimes clad and often electrically insulated, used chiefly for structural support or to conduct electricity is called as wire.