Audio Watermarking with White Noise Addition
Audio watermarking program with white noise integration, implementing 3-level wavelet decomposition to embed random sequences into low-frequency coefficients
MATLAB Implementation of Complete QPSK System: From Random Sequence to Symbol Level with M-Sequence Spread Spectrum and Modulation/Demodulation
This MATLAB program implements a comprehensive QPSK system process including random sequence generation to symbol level mapping, direct sequence spread spectrum using m-sequences, QPSK modulation/demodulation, and RF modulation/demodulation, providing complete digital communication system simulation.
Random Sequence Generation Programs with System Identification Algorithms
Key MATLAB implementations covering: 【1】Random sequence generation program 【2】White noise generation with zero mean and constant variance 【3】M-sequence generation with optimal autocorrelation properties 【4】One-step least squares identification for second-order systems 【5】Practical pressure system parameter identification 【6】Recursive least squares algorithm for large datasets 【7】Augmented least squares for underactuated systems 【8】Gradient-corrected least squares for enhanced accuracy 【9】Recursive maximum likelihood estimation 【10】Bayesian parameter estimation methods 【11】Modified neural network MBP algorithm for noisy systems 【12】Multi-dimensional nonlinear function identification 【13】Fuzzy neural network decoupling for multi-time-scale systems 【14】F-test procedures for model validation
Runs Test for Random Sequences with MATLAB Implementation
Runs Test for Random Sequences - A Nonparametric Statistical Method for Randomness Verification with MATLAB Code Implementation