The GPS signal simulator can simulate the trajectory of the satellite signal and simulate the navigation signal of the GPS satellite navigation system. The GPS trajectory generator can simulate the navigation system to determine location points such as date, time, longitude, latitude, altitude information and speed. The GPS trajectory simulator can provide the basic, time service users with the development, development, production and testing of the equipment, and is suitable for the research and development of the related products depending on the satellite navigation and positioning functions.

The GPS trajectory simulator is composed of two parts: the simulation transponder and the attitude orbit simulator. The analog transponder consists of receiver, transmitter, squelch control circuit, ranging relay, telemetry terminal, remote control terminal, etc. The attitude orbit simulator consists of a simulation computer and an input / output interface circuit. The simulator receives the instruction code of the remote terminal demodulation output, simulates the working state of the attitude control system, the satellite attitude and other engineering parameters, then sends the telemetry terminal in the form of PCM encoding, carries out the sub carrier video modulation, and sends the transmitter and carrier to the ground through the transmitter carrier modulation and amplification.

At present, there are many kinds of GPS signal simulators on the market. When consumers choose to buy them, we should pay attention to them. As mature GPS signal simulator manufacturers, they should have basic functions, such as simulating GPS satellite navigation and positioning and trajectory, electronic map browsing and query, intelligent route planning.

The SYN5203 GPS signal simulator produced by Xi'an synchronous Electronic Technology Co., Ltd. has the following functions: it can simulate the motion path of the satellite navigation signal, have single or infinite loops, locate the location information at any time and place, and can navigate the terminal test in static and dynamic environment. It can measure the specific speed of the driving, have the function of micro power transmitting, connect the receiver test, adjust the output power arbitrarily, adjust the high frequency signal of the antenna outlet, display the running track, and record the time. In addition, the SYN5203 GPS signal simulator has the advantages of beautiful appearance, convenient installation, mature performance, simple operation, and can meet the needs of different users.

Under the continuous progress of science and technology, satellite navigation technology is developing rapidly and widely used in different fields. However, in order to improve the performance of navigation and positioning receivers, it is necessary for satellite signal simulator to detect and test. The GPS trajectory simulator is applied to the design and development of satellite navigation user equipment and batch automatic testing and testing of satellite navigation user equipment. The GPS trajectory simulator can also be applied to the research and development of related products of satellite navigation and positioning functions, such as sharing bicycles, sharing cars, navigation and positioning equipment, electronic fence equipment and other application environments.

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