Design engineers don't always need scopes whose capabilities go way beyond the ordinary. Many design-lab benches can do with instruments whose bandwidth is measured not in gigahertz but in hundreds or ...

Bad Fast Fourier Transfer (FFT) data captures can cause you to misunderstand the true performance of your analog-to-digital converter (ADC). Some engineers like to coherently sample and capture data ...

在数字数据采集过程中，传感器输出模拟信号，这些信号必须经过数字化处理才能被计算机处理。计算机无法像传感器那样存储连续的模拟时间波形，因此它会将信号分解成离散的“片段”或“样本”来存储。数据记录在时域中，但通常需要进行傅里叶变换才能 ...

A new algorithm performs Fourier transforms using a minimal number of samples. The fast Fourier transform, one of the most important algorithms of the 20th century, revolutionized signal processing.

When evaluating the dynamic performance of precision analog-to-digital converters (ADCs) using fast Fourier transform (FFT) analysis, coherent sampling typically is used to accurately measure the ...

What is The Goertzel Algorithm? The Goertzel algorithm can perform tone detection using much less CPU horsepower than the Fast Fourier Transform, but many engineers have never heard of it. This ...