The satellite signal simulator is a kind of motion that can be set according to the set of vectors. Relatively precise control can affect the error of the signal, thus generating an analog navigation signal received by the receiver in an experimental environment. This paper mainly introduces the analogue navigation signal based on GPS satellite navigation and positioning system, and gives a brief overview of its application principles and characteristics.

The GPS satellite navigation signal simulator is the output of RF simulation signal supporting GPS L1 frequency. The generated navigation simulation signal is controllable and repeatable, and supports real-time ephemeris and external ephemeris parameter input. It can greatly reduce the high equipment cost brought by on-site testing, and the preconditioning time consumed in the experimental environment at the economic level, and support various trajectory outputs of different time lengths. It greatly improves the test efficiency of analog signal acceptance of navigation terminal products, meets the test requirements of various GPS navigation time service receiving terminals, and can replace the high GPS simulator abroad, which has always been the concern of the industrial sector.

The SYN5203 GPS satellite navigation signal simulator is applied to the research and development of Tong Hu equipment, which is a basic type and time service type. In the various links of production testing, a navigation system or multiple constellation satellite navigation signals compatible with multiple navigation systems can be produced.

At the same time, the GPS satellite navigation signal simulator can complete the ranging accuracy test, navigation message test, lock out re capture test, positioning accuracy test, speed accuracy test, channel delay test, conformance test, error rate test, and so on, which will greatly enhance the work efficiency. It can also simulate the movement state of the receiving terminal at the same time. The simulator can not only generate satellite navigation analog signals according to pre-set track information, but also receive the carrier position of the hardware in the loop simulation computer, and simulate the position distribution and movement of multiple satellites on orbit.

The GPS satellite navigation signal simulator simulates the arrival angle, intensity and delay of different navigation satellite RF signals received by the satellite positioning receiver according to the different attitude of the carrier, the position of the receiver antenna, the distance between antennas and the distance between the satellite and the satellite. It also applies to the research and development of the related products that rely on the satellite navigation and positioning function, and then simulates the satellite navigation process in the carrier flight process, and generates the satellite navigation simulation signal in real time or near real-time.

The satellite navigation signal generated by the signal simulation source generated by the GPS satellite navigation high altitude simulator contains the characteristics of the satellite launch model and the various propagation effects that the signal reaches through the space transmission to the terminal equipment.

In addition, the GPS satellite navigation signal simulator application test is suitable for the anti jamming receiver satellite navigation test laboratory, and the navigation signal and interference signal correspond to different phase characteristics. The SYN5203 GPS satellite navigation signal simulator has radio reception function, can accept a variety of radio signals, has radio transmitting function, can transmit multiple radio formats, has the function of spectrum analyzer, can carry out sweeping frequency analysis, and can generate high-frequency analog signal source. If you want to know more about this, please consult our company's business people!

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