快速傅立叶变换
命名空间:
HslCommunication.Algorithms.Fourier
程序集:
HslCommunication (在 HslCommunication.dll 中) 版本:12.5.1.0 (12.5.1.0)
语法public static double[] FFTValue(
double[] xreal,
double[] ximag,
bool isSqrtDouble = false
)
Public Shared Function FFTValue (
xreal As Double(),
ximag As Double(),
Optional isSqrtDouble As Boolean = false
) As Double()
public:
static array<double>^ FFTValue(
array<double>^ xreal,
array<double>^ ximag,
bool isSqrtDouble = false
)
static member FFTValue :
xreal : float[] *
ximag : float[] *
?isSqrtDouble : bool
(* Defaults:
let _isSqrtDouble = defaultArg isSqrtDouble false
*)
-> float[]
参数
- xreal
- 类型:SystemDouble
实数部分,数组长度最好为2的n次方 - ximag
- 类型:SystemDouble
虚数部分,数组长度最好为2的n次方 - isSqrtDouble (Optional)
- 类型:SystemBoolean
是否开两次根,显示的噪点信息会更新明显
返回值
类型:
Double变换后的数组值
参见