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  • 大小: 5KB
    文件類型: .cs
    金幣: 1
    下載: 1 次
    發布日期: 2021-06-11
  • 語言: C#
  • 標簽:

資源簡介

c#實現的FIR數字濾波器,濾除50hz工頻干擾;中值濾波實現濾除基線漂移

資源截圖

代碼片段和文件信息

using?System;
using?System.Collections.Generic;
using?System.Text;
using?System.Collections;

namespace?WindowsApplication2
{
????class?MyFirlter
????{
????????public?static?short[]?GetFirlterData(short[]?Data)
????????{
????????????short[]?Result?=?new?short[Data.Length?-?90];
????????????Queue?WindowQueue=new?Queue(90);
????????????short[]?WindowArray?=?new?short[90];
????????????int?site?=?0;
????????????for?(int?i?=?0;?i?????????????{
????????????????WindowQueue.Enqueue(Data[i]);
????????????????site?=?i;
????????????}
????????????short?item?=?0;
????????????while?(site?????????????{
????????????????WindowQueue.CopyTo(WindowArray?0);
????????????????item?=?GetEachFirlterData(WindowArray);
????????????????Result[site?-?89]?=?item;
????????????????site++;
????????????????WindowQueue.Dequeue();
????????????????WindowQueue.Enqueue(Data[site]);
????????????}



????????????return?Result;
????????}

????????private?static?short?GetEachFirlterData(short[]?Data)
????????{
????????????short?Result?=?0;
????????????short?h?=?Data[9];

????????????short?t1?=?Convert.ToInt16(Data[79]?-?Data[0]+Data[89]);
????????????//short?t2?=?Convert.ToInt16(Data[79]?-?Data[70]);

????????????int?t?=?Convert.ToInt32(Math.Pow(t1?2));
????????????Result?=?Convert.ToInt16(h?-?t?/?64);

????????????return?Result;
????????}

????????public?static?short[]?de(short[]?Data)
????????{
????????????short[]?Result?=?new?short[Data.Length?-?7];
????????????Queue?WindowQueue?=?new?Queue(7);
????????????short[]?WindowArray?=?new?short[7];
????????????int?site?=?0;
????????????for?(int?i?=?0;?i?????????????{
????????????????WindowQueue.Enqueue(Data[i]);
????????????????site?=?i;
????????????}
????????????short?item?=?0;
????????????while?(site?????????????{
????????????????WindowQueue.CopyTo(WindowArray?0);
????????????????item?=?ce(WindowArray);
????????????????Result[site?-?6]?=?item;
????????????????site++;
????????????????WindowQueue.Dequeue();
????????????????WindowQueue.Enqueue(Data[site]);
????????????}
????????????return?Result;
????????}

????????private?static?short?ce(short[]?data)
????????{
????????????int?j?=?(-data[0]?+?2?*?data[5]?+?5?*?data[4]?+?4?*?data[3]?+?5?*?data[2]?+?2?*?data[1]?-?data[0])/16;
????????????return?Convert.ToInt16(j);

????????}
????????#region?中值濾波

????????//private?static?int?DataWindowCount=109;
????????public?static?short[]?GetMidFilterData(short[]?Data?int?FirstDataWindowCount?int?SecondDataWindowCount)
????????{
????????????short[]?Result?=?new?short[Data.Length];
????????????Result?=?GetMedianFilterData(Data?FirstDataWindowCount);
????????????Result?=?GetMedianFilter

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