Exemplo n.º 1
0
        // Some rough calculations have shown that sample rate calculation is extremely accurate,
        // so long as the frequency of the system is close to the frequency passed into this method
        // (within a few hundreths of a Hz). However, in the interest of correctness, this method
        // attempts to use the sample rate provided by the data loader--if one has been provided--
        // rather than blindly using the calculated sample rate. Given the accuracy of the
        // calculation, this may not be necessary.
        private static void ValidateSampleRates(double frequency, MeasurementDataSet measurementDataSet)
        {
            int[] sampleRates = new int[] { measurementDataSet.AN.SampleRate, measurementDataSet.BN.SampleRate, measurementDataSet.CN.SampleRate };
            int[] distinctSampleRates;

            if (sampleRates.Any(rate => rate == 0))
            {
                distinctSampleRates = sampleRates.Where(rate => rate != 0).Distinct().ToArray();

                if (distinctSampleRates.Length != 1)
                {
                    measurementDataSet.CalculateSampleRates(frequency);
                }
                else
                {
                    measurementDataSet.AN.SampleRate = distinctSampleRates[0];
                    measurementDataSet.BN.SampleRate = distinctSampleRates[0];
                    measurementDataSet.CN.SampleRate = distinctSampleRates[0];
                }
            }
        }