/// <summary>
/// 根据精度测量噪低
/// </summary>
/// <param name="accuracy"></param>
/// <returns></returns>
public double MeasureNoiseFloor(double accuracy)
{
accuracy = Math.Max(accuracy, 0.01);
accuracy = Math.Min(accuracy, 10);
double num = Math.Pow(10, 0.1 * accuracy);
double num1 = 1 / (num - 1);
double num2 = num1 * num1;
int num3 = Math.Max(65, (int)(num2 / 10));
double num4 = 100;
double num5 = 1 / (6.28318530717959 * num4);
double sweepTime = this.SweepTime;
double num6 = 3 * num5 * (double)num3;
this.RBW = 1000;
this.VBW = num4;
this.SweepPoints = num3;
this.SweepTime = num6;
this.Marker1Function = SpectrumAnalyzer.MarkerFunctionType.BandIntervalPower;
if (SpectrumAnalyzer.IsPSA(this.Model) || SpectrumAnalyzer.IsESA(this.Model))
{
this.Marker1Mode = SpectrumAnalyzer.MarkerModeType.Span;
}
else
{
this.Sweep();
}
this.MarkerPositionPoints = (double)((num3 - 1) / 2);
this.MarkerSpanPoints = (double)(num3 - 4);
this.Sweep();
this.SweepTime = sweepTime;
return(this.Marker1Value - 30);
}
public static SpectrumAnalyzer CreateDetectedSpectrumAnalyzer(string address)
{
SpectrumAnalyzer scpiSpectrumAnalyzer;
try
{
string str = ScpiInstrument.DetermineModel(address);
if (SpectrumAnalyzer.IsMXA(str) || SpectrumAnalyzer.IsEXA(str) || SpectrumAnalyzer.IsPXA(str))
{
scpiSpectrumAnalyzer = new ScpiSpectrumAnalyzer(address);
}
else if (SpectrumAnalyzer.IsFSW(str))
{
scpiSpectrumAnalyzer = new ScpiSpectrumAnalyzerFSW(address);
}
else if (SpectrumAnalyzer.IsESA(str) || SpectrumAnalyzer.IsPSA(str) || SpectrumAnalyzer.IsE4446A(str))
{
scpiSpectrumAnalyzer = new ScpiSpectrumAnalyzerE4446A(address);
}
else if (SpectrumAnalyzer.IsAV4003(str))
{
scpiSpectrumAnalyzer = new ScpiSpectrumAnalyzerAV4033(address);
}
else
{
throw new Exception(string.Concat(str, " 不支持对应型号的频谱仪"));
}
}
catch (Exception exception)
{
throw new Exception(string.Concat("连接频谱仪错误: ", exception.Message));
}
return(scpiSpectrumAnalyzer);
}
public static SpectrumAnalyzer Connect(string currentAddress, SpectrumAnalyzer.ValidateSupportDelegate supportDelegate, bool interactive)
{
SpectrumAnalyzer spectrumAnalyzer = null;
string str = (currentAddress != null ? currentAddress : "GPIB0::18::INSTR");
SpectrumAnalyzer.m_validateSupportDelegate = supportDelegate;
if (interactive)
{
throw new Exception("不支持交互模式");
}
try
{
if (SpectrumAnalyzer.DetermineSupport(str) == null)
{
spectrumAnalyzer = SpectrumAnalyzer.CreateDetectedSpectrumAnalyzer(str);
}
}
catch
{
// MessageBox.Show("设备连接异常！");
}
SpectrumAnalyzer.m_validateSupportDelegate = null;
if (spectrumAnalyzer != null)
{
spectrumAnalyzer.Connected = true;
}
return(spectrumAnalyzer);
}
protected override void DetermineOptions()
{
if (!SpectrumAnalyzer.IsESA(this.Model))
{
base.DetermineOptions();
return;
}
this.m_options = "";
}
private static string DetermineSupport(string address)
{
if (SpectrumAnalyzer.m_validateSupportDelegate == null)
{
return(null);
}
SpectrumAnalyzer spectrumAnalyzer = null;
try
{
spectrumAnalyzer = SpectrumAnalyzer.CreateDetectedSpectrumAnalyzer(address);
}
catch
{
throw;
}
if (spectrumAnalyzer == null)
{
return("无法识别对应的频谱仪");
}
return(SpectrumAnalyzer.m_validateSupportDelegate(spectrumAnalyzer));
}
public virtual bool IsPXA()
{
return(SpectrumAnalyzer.IsPXA(this.Model));
}