Explore MATLAB source code curated for "载波" with clean implementations, documentation, and examples.
FM modulation implemented using Simulink with 13KHz carrier frequency and 3KHz frequency deviation. The modulated waveform is saved as a waveform file. FM demodulation employs dual-slope frequency discrimination sampling technique, with demodulated signal directly output to sound card.
GPS signal tracking implementation using phase-locked loop technology, including code loop tracking and carrier tracking loop with algorithm explanations and key MATLAB functions
This program implements channel estimation using block-type pilots in OFDM systems. Block-type pilots are suitable for slowly time-varying multipath channels and enable estimation of channel transmission characteristics for each subcarrier. The implementation includes algorithms for pilot insertion, least squares estimation, and channel interpolation techniques.
Using cosine wave signals as an example, implement double sideband suppressed carrier analog modulation through MATLAB coding with detailed algorithm explanation and function descriptions
A comprehensive 16QAM simulation program featuring implementations of carrier signals, eye diagrams, constellation plots, and other common communication system visualizations with detailed code explanations
GPS Data Processing Software featuring source code implementations for pseudorange, carrier phase, differential positioning, and ambiguity resolution - ideal for beginners to quickly grasp GPS fundamentals
Implementation of frequency modulation using a 1000 Hz carrier wave, with additive white Gaussian noise introduced before demodulation. Demodulation is performed at signal-to-noise ratios of 0.001, 0.01, 0.05, 0.1, and 0.3, followed by plotting of the modulated signals to analyze noise impact.
Digital frequency modulation, also referred to as Frequency-Shift Keying (FSK), with binary FSK denoted as 2FSK. This digital modulation technique uses the frequency of a carrier wave to transmit digital messages by controlling the carrier's frequency based on the input data. In 2FSK signals, the symbol "1" corresponds to one carrier frequency, while the symbol "0" corresponds to a different carrier frequency, with instantaneous switching between frequencies. Implementation often involves generating two distinct sinusoidal waveforms and switching between them using digital logic or lookup tables in code.
A comprehensive example demonstrating basic modulation techniques including Amplitude Modulation (AM), Frequency Modulation (FM), and carrier wave fundamentals with implementation insights
A comprehensive Simulink simulation model for GPS L1 band, featuring C/A code generation, carrier modulation, noise integration, and successful operational capability.