What kind of modulation is used in GMSK?
GMSK basics. GMSK modulation is based on MSK, which is itself a form of continuous-phase frequency-shift keying, CPFSK. One of the problems with standard forms of PSK is that sidebands extend out from the carrier. To overcome this, MSK and its derivative GMSK can be used. MSK and also GMSK modulation are what is known as a continuous phase scheme.
What is the difference between MSK and GMSK?
This page describes MSK (Minimum Shift Keying) and GMSK (Gaussian Minimum Shift Keying) modulation techniques. It covers GMSK modulator and GMSK demodulator based on QPSK modulation method. GMSK is the derivative of MSK modulation scheme and MSK is derived from Offset QPSK modulation.
Which is the best method to generate GMSK?
There are two main methods to generate GMSK. The first one is FSK modulation and the second one is QPSK modulation. The first one is based on GMSK VCO architecture and is not ideal for coherent demodulator. We will discuss second type used in GSM depicted in figure 3 and 4 below.
Can a FPGA be used as a GMSK demodulator?
Along with this thesis, GMSK modulation/demodulation has implemented on FPGA with VHDL to use in a SDR project which is planned to be placed in a cube satellite. The motivation for this project is, providing a flexible system that even baseband carrier frequency can be changed by reprogramming FPGA.
How is GMSK used in a cell phone?
GMSK, which is widely used in GSM cell phones, is a modulation method that encodes data information by phase modulating a constant envelope sine wave signal.
How is GMSK used in many cube satellites?
Many cube satellite has mostly 2 different modulation option for communication. Frequency shift keying (FSK) and Gaussian minimum shift keying (GMSK). Our motivation for this projec t is to provide a flexible sy stem for c ube satellites. There architecture.