kalman-vb.txt

使用VB语言实现的卡尔曼滤波源程序

Dim num1, num2, num3
Dim a(), a1(), e() As Single
Dim alf, xgm(), p(), k1(), k2, k(), p1(), p2(), c(), c1, k3(), k4(), cc() As Single
Private Sub Command1_Click()
CommonDialog1.ShowOpen
Open CommonDialog1.FileName For Input As #1
num3 = Val(Text1.Text) + 2
num2 = Val(Text2.Text)
ReDim a(num3, num2)

For j = 1 To num3
For i = 1 To num2
Input #1, a(j, i)
Next i
Next j
Close #1


Private Sub Command2_Click()
CommonDialog1.ShowSave
Open CommonDialog1.FileName For Append As #2

For i = 1 To num2
Print #2, cc(i, 1), cc(i, 2), cc(i, 3)
Next i

Shell "c:\windows\notepad " & CommonDialog1.FileName
End Sub

Private Sub Command3_Click()

num1 = Val(Text1.Text) + 1
num2 = Val(Text2.Text)
num3 = Val(Text1.Text) + 2
ReDim a1(num2), e(num1, num2) As Single
ReDim xgm(num1), p(num1, num1), k1(num1), k(num1), p1(num1, num1), p2(num1, num1), c(num1), k3(num1), k4(num1), cc(num2, num1) As Single

c(1) = c(2) = c(3) = 0
r = 0.000001
alf = 10

For j = 1 To num1
For i = 1 To num2
e(j, i) = a(j, i)
a1(i) = a(num3, i)
Next i
Next j

For x = 1 To num1
xgm(x) = alf * Sqr(r / e(x, 1))
p(x, x) = xgm(x)^2
Next x

For q = 1 To num2

For i = 1 To num1
k3(i) = k4(i) = 0
Next i
k2 = 0

For i = 1 To num1
For j = 1 To num1
X0 p1(i, j) = p2(i, j) = 0
Next j
Next i

c1 = 0

For m = 1 To num1
k3(m) = 0
For n = 1 To num1
k3(m) = k3(m) + e(n, q) * p(n, m)
Next n
Next m

For m = 1 To num1
k4(m) = 0
k4(m) = k4(m) + 1000 * k3(m) * e(m, q)
Next m

For i = 1 To num1
k2 = k2 + k4(i)
Next i

For v = 1 To num1
k(v) = 0
k(v) = k3(v) * (k2 / 1000 + r)^-1
Next v

For i = 1 To num1
For j = 1 To 3
p1(i, j) = k(i) * e(j, q)
Next j
Next i

For l = 1 To num1
For i = 1 To num1
p2(l, i) = 0
For j = 1 To num1
p2(l, i) = 1000 * p1(l, j) * p(j, i) + p2(l, i)
Next j
Next i
Next l

For i = 1 To num1
For j = 1 To num1
p(i, j) = p(i, j) - p2(i, j) / 1000
Next j
Next i

For i = 1 To num1
c1 = c1 + e(i, q) * c(i)
Next i

For i = 1 To num1
c(i) = c(i) + k(i) * (a1(q) - c1)
Next i

For i = 1 To num1
cc(q, i) = c(i)
Next i

Next q

End Sub

Private Sub Command4_Click()
End
End Sub