Справочник Пользователя для Meridian Data Transplant CF LP GPS Receiver

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Glossary 
 
Almanac data 
A set of information that transmitted by each satellite on the orbits and state of 
every satellite in the GPS constellation. Each GPS satellite contains and transmits 
the almanac data set for the entire GPS satellite system network. Almanac data 
allows the GPS receiver to rapidly acquire satellites shortly after it is turned on. 
 
ACTIVE ANTENNA 
An antenna that amplifies the GPS signal before it sends it to the receiver. 
 
Altitude 
The distance between the current position and the nearest point on WGS 84 
reference ellipsoid, usually it is expressed in meters or feet and is positive outside 
the ellipsoid. 
 
Baud 
Bits per second. Also referred to as a baud rate. 
 
Channel 
Channel refers to a set of hardware in the receiver that detects locks on and 
continuously tracks the signal from a single GPS satellite. The more channels 
available, the greater number of GPS satellite’s signals a receiver can 
simultaneously lock and track.    A receiver of 12 channels is the optimized design, 
considering the current consumption, chip-package size and cost. 
 
CEP - Circular Error Probable   
CEP is the radius of a circle, centered at a true location, within which fifty percent of 
positioning solutions fall. CEP is used to achieve horizontal accuracy. 
 
C/N
o
Carrier-to-Noise density ratio. An indication of satellite signal strength received by 
the GPS receiver. 
 
COLD START   
A condition in which the GPS receiver can arrive at a navigation solution without 
initial position, time, current Ephemeris, and almanac data. 
 
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