Category Archive for: FREQUENCY RESPONSE

One-nth Decade and Octave Intervals

In many practical investigations, including computer-generated frequency-res’ Dose data. it is necessary to specify logarithmic frequency intervals within one decade or within one octave, For example, we may want ten logarithmic-ally spaced frequencies within one decade. These frequencies are said to be at one-tenth decade intervals. Similarly. three logarithmically spaced frequenr ies in one octave…

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Semilog and Log-Log Plots

Semigloss and Log-Log Plots 1t is a convenient and widely followed practice to plot •.he logarithm of frequency-response data rather than actual data values. If the logarithm of frequency is plotted along the horizontal axis, a wide frequency range can be displayed on a convenient size of paper without losing resolution at the low-frequency end.…

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Decibel’s AND LOGARITHMIC PLOTS Decibels Frequency-response data arc often presented in decibel form. Recall that decibels (dB) are the units used to compare two power levels in accordance with the The two power levels, PI and P2, are moisten the input and output power of a system, respectively, in which case equation 10-3 defines the power…

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at one frequency is different than it is at another frequency, the output will be distorted, in the sense that it will not have the same shape as the input waveform. This alteration in wave shape is called amplitude distortion. Figure 10-3 shows the distortion that results when a triangular waveform is passed through an…

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DEFINITIONS AND BASIC CONCEPTS The frequency response of an electronic device or system is the variation it causes. if any. in the level of its output signal when the frequency of the signal is changed. In other words. it is the manner in which the device responds to changes in signal frequency. Variation in the…

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