数组和矩阵数学

数组和矩阵运算、多项式拟合

您可以使用 DSP System Toolbox™ 中的 System object 和模块对数组和矩阵执行一些数学运算。这些运算包括简单运算，如加法、减法、乘法和除法，以及更复杂的运算，如累积和、累积乘积和归一化。您也可以从矩阵中提取对角线以及上三角形和下三角形。此外，DSP System Toolbox 的模块还可以执行最小二乘意义上的多项式拟合，计算多项式，以及确定多项式的根是否在单位圆内。

模块

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Array-Vector AddAdd vector to array along specified dimension
Array-Vector DivideDivide array by vector along specified dimension
Array-Vector MultiplyMultiply array by vector along specified dimension
Array-Vector SubtractSubtract vector from array along specified dimension
Cumulative ProductCumulative product of channel, column, or row elements
Cumulative SumCumulative sum of channel, column, or row elements
dB ConversionConvert magnitude data to decibels (dB or dBm)
dB GainApply decibel gain
DifferenceCompute element-to-element difference along specified dimension of input
NormalizationPerform vector normalization along rows, columns, or specified dimension
Extract Triangular MatrixExtract lower or upper triangle from input matrices
Matrix 1-NormCompute 1-norm of matrix
Matrix Concatenate串联相同数据类型的输入矩阵以进行迭代处理
Matrix ExponentialCompute matrix exponential
Matrix Multiply标量和非标量的乘除运算或者矩阵的乘法和逆运算
Matrix ProductMultiply matrix elements along rows, columns, or entire input
Matrix Sum输入信号的加减运算
Overwrite ValuesOverwrite submatrix or subdiagonal of input
Reciprocal ConditionCompute reciprocal condition of square matrix in 1-norm
ToeplitzGenerate matrix with Toeplitz symmetry
Least Squares Polynomial FitCompute polynomial coefficients that best fit input data in least-squares sense
Polynomial EvaluationEvaluate polynomial expression
Polynomial Stability TestUse Schur-Cohn algorithm to determine whether all roots of input polynomial are inside unit circle

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