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MATLAB 中的定点矩阵运算

进行了优化的定点数学运算、矩阵求解器和矩阵分解函数,用于实现高效代码

使用这些函数来执行定点数学和矩阵运算,并生成高效代码。这些函数求解线性方程组,并以对嵌入式设备高效的方式执行矩阵分解。

函数

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ceilDivRound the result of division toward positive infinity
fixed.cordicDivideFixed-point divide using CORDIC
fixed.cordicReciprocalFixed-point reciprocal using CORDIC
fixDivRound the result of division toward zero
floorDivRound the result of division toward negative infinity
nearestDivRound the result of division toward the nearest integer
modByConstantModulus after division by a constant denominator
fixed.backwardSubstituteSolve upper-triangular system of equations through backward substitution
fixed.forwardSubstitute通过前代求解下三角方程组
fixed.qlessQRQ-less QR decomposition
fixed.qlessQRUpdateUpdate QR factorization
fixed.qrABCompute C = Q'B and upper-triangular factor R
fixed.qrMatrixSolveSolve system of linear equations Ax = B for x using QR decomposition
fixed.qlessQRMatrixSolveSolve system of linear equations (A'A)X = B for X using Q-less QR decomposition
fixed.svdFixed-point singular value decomposition
svdFixed-point singular value decomposition
fixed.qrFixedpointTypesDetermine fixed-point types for transforming A and R and B to C=Q'B in-place, where QR=A is QR decomposition of A
fixed.qlessqrFixedpointTypesDetermine fixed-point types for transforming A to R in-place, where R is upper-triangular factor of QR decomposition of A, without computing Q
fixed.realQRMatrixSolveFixedpointTypesDetermine fixed-point types for matrix solution of real-valued AX=B using QR decomposition
fixed.complexQRMatrixSolveFixedpointTypesDetermine fixed-point types for matrix solution of complex-valued AX=B using QR decomposition
fixed.realQlessQRMatrixSolveFixedpointTypesDetermine fixed-point types for matrix solution of real-valued A'AX=B using QR decomposition
fixed.complexQlessQRMatrixSolveFixedpointTypesDetermine fixed-point types for matrix solution of complex-valued A'AX=B using QR decomposition
fixed.realSingularValueLowerBoundEstimate lower bound for smallest singular value of real-valued matrix
fixed.complexSingularValueLowerBoundEstimate lower bound for smallest singular value of complex-valued matrix
fixed.singularValueUpperBoundUpper bound of largest singular value of matrix
fixed.realConditionNumberUpperBoundEstimate of upper bound for 2-norm condition number of real-valued matrix
fixed.complexConditionNumberUpperBoundEstimate of upper bound for 2-norm condition number of complex-valued matrix
fixed.forgettingFactorCompute forgetting factor required for streaming input data
fixed.forgettingFactorInverseCompute the inverse of the forgetting factor required for streaming input data
fixed.realQuantizationNoiseStandardDeviationEstimate standard deviation of quantization noise of real-valued signal
fixed.complexQuantizationNoiseStandardDeviationEstimate standard deviation of quantization noise of complex-valued signal

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