Configuring Moving Average Filter Lengths for Decimated Signal Processing
Matching moving average filter length to the decimation factor eliminates alias leakage by placing transfer function zeros directly on downsampling fold points.
Multi Coil Quadrature Demodulation Signal Chains for Proximity Measurement
Multi coil quadrature demodulation isolates amplitude and phase in inductive proximity chains, resolving sub-micron targets while rejecting thermal noise.
Calculating RMS Noise from Sensor Spectral Noise Density Datasheet Specifications
Root-mean-square noise equals spectral density multiplied by the square root of equivalent noise bandwidth, adjusted for flicker corner frequency integration.
Cross Sensitivity to Temperature in Parts Bought for Pressure
Temperature cross-sensitivity in pressure sensors stems from physical die stress and semiconductor carrier shift, requiring digital ASIC polynomial compensation to control thermal error bands.
Quantifying Phase Margin Loss from Cascaded Sinc and Boxcar Filter Window Delay
Cascaded sinc and boxcar filter window delays introduce deterministic group delays that subtract directly from control loop phase margin at crossover frequencies.
Integrating Moving Average Filter Windows with Analog Converter Downsampling Rates
Aligning moving average filter lengths as integer multiples of ADC decimation rates eliminates aliasing foldover and maximizes noise bandwidth reduction.
Piezoresistive Pressure Sensor Signal Conditioning Conditioning Polynomial Calibration Chamber Testing
Normalizing digitized bridge and temperature counts before solving polynomial matrix equations eliminates floating point overflow and preserves calibration accuracy.
Turning a Noise Density Figure into Your Own Averaging Window
Square the quotient of specified noise density over target resolution to establish the equivalent noise bandwidth required for averaging filter design.