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Main features of IT++
A short list of the main features of IT++ is given below sorted in different categories. Many more features and functions exist and for these we refer to the reference documentation.
Programming features
templated array and stack container classes
input and file argument parser
timing functions and classes
Basic mathematical features
templated vector and matrix classes
sparse vectors and matrix classes
elementary functions on vectors and matrices
matrix decompositions such as eigenvalue, Cholesky, LU, Schur, SVD, and QR
solving linear system of equations (including over and underdetermined)
random number generation (Mersenne Twister generator)
binary and Galois types (both scalar and vector and matrices)
integration of 1-dimensional functions
unconditional nonlinear optimization (Quasi-Newton search)
Signal processing
filter functions and classes
frequency domain filtering
FFT, DFT, DCT, and Hadamard transforms
time and frequency domain windows
evaluating and finding roots of polynomials (and inverse operations)
filter design functions
fast independent component analysis (fast ICA)
statistics class
Communications
modulators (BPSK, PSK, PAM, QAM)
vector modulators (e.g. for OFDM and MIMO)
OFDM and CDMA modulators
pulse shaping filters (including RC and RRC)
binary symmetric (BSC) and additive white Gaussian Noise (AWGN) channels
multipath fading channels (both frequency-flat and frequency-selective)
COST 207, COST 257, and ITU channel models
Hamming, Extended Golay, and CRC codes
BCH and Reed-Solomon codes
convolutional and punctured convolutional codes
recursive convolutional codes
turbo codes
interleavers
Protocol simulation
event-based simulation classes
signal and slots for simplified syntax
TCP clients and servers
Selective Repeat ARQ
queue classes
packet generators
Source coding
Scalar Quantizer (SQ) and Vector Quantizer (VQ) classes and functions for training of these
LPC, LSF, and cepstrum parameter calculation for speech processing
Gaussian Mixture Modeling
reading and saving several different audiofile formats
reading and saving images in PNM format
Other features
binary file format for most built in and IT++ types
fixed-point scalar, vector and matrix types
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