請教木樁老師 There is the Real-world limitations of Trapezoidal, Midpoint, and Simpson’s rules: 1. Non-integer sampling ratios: The sampling period is rarely an integer divisor of the signal period. In practice, an ideal integer N of samples per cycle does not exist. 2. Zero-crossing misalignment: Sampled data points generally do not align precisely with the signal's zero-crossing points. 3. Dynamic signal periods: The actual signal period T fluctuates over time and must be measured continuously in real time. Together, issues 1, 2, and 3 severely degrade integration accuracy. 4. The current solutions, such as FFT windowing, are highly CPU-intensive and impractical for real-time AC power monitoring. Questions: • Is there an existing time-domain solution available today? • If it not exist, would you be interested in reviewing and improving a proposed real time solution? 謝謝 |
