Further, this example shows how to generate a GPS baseband waveform, which can be extended to generate an intermediate frequency (IF) waveform from the baseband waveform by multiplying a cosine signal on the in-phase branch and a sine signal on the quadrature-branch.

GPS L1C is a modernized civil navigation signal transmitted on the L1 band (1575.42 MHz). GPS L1C uses the BOC modulation scheme. This modulation scheme enables efficient use of the L1 band so that the new signal does not interfere with existing legacy signals.

This example shows how to generate a global positioning system (GPS) waveform and transmit using a software-defined radio (SDR). You can use this example to employ the generated GPS waveform to test your receiver.

This example shows how to generate a legacy Global Positioning System (GPS) intermediate frequency (IF) waveform from multiple satellites, add noise to the composite signal, perform initial synchronization, and track the code phase and carrier frequency of the available satellites detected from the initial synchronization operation.

In the example, generate GPS baseband waveform for satellites of your choice, perform acquisition to search for visible satellites in the signal, and track the visible satellites as shown in this figure.

This topic provides a foundational understanding of the Global Positioning System (GPS), its segment structure, signal specifications of both legacy and modernized signals, and the accuracy GPS provides. This topic also explains in detail how the trilateration technique underlies the functioning of GPS.

Simulate real-time GPS signal, by scaling the GPS signal amplitude below the noise floor, and check the acquisition and tracking using the ADALM-PLUTO radio. Perform position estimation with the SDR device.

2019年1月16日 · Generation of GPS (L1 C/A, L2C, L5), Galielo (E1OS, E5) and BeiDou (B1I) signals, PRNs, primary and secondary codes for Matlab. There are also programs to plot analytically their spectra and autocorrelation functions. There are example scripts, and real data captures in order to test the functions.

Just noticed that in the new version of matlab there is a new toolbox for satellite commnucation which contains an option to generate GPS signal. As I've never used the SDR functionality within matlab, is there an option to generate the GPS signal on the SDR?

2018年6月1日 · There is Satellite Communications Toolbox in MATLAB that supports GPS waveform generation, Receiver acquisition and tracking, and receiver position estimation simulation from a simulated GPS signal.