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Everything about Pulse-frequency modulation
Represents an analog signal using only two levels
Pulse-frequency modulation (PFM) is a modulation method for representing an analog signal using only two levels. It is analogous to pulse-width modulation (PWM), in which the magnitude of an analog signal is encoded in the duty cycle of a square wave. Unlike PWM, in which the width of square pulses is varied at a constant frequency, PFM fixes the width of square pulses while varying the frequency. In other words, the frequency of the pulse train is varied in accordance with the instantaneous amplitude of the modulating signal at sampling intervals. The amplitude and width of the pulses are kept constant. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: Pulse-frequency modulationA 5-minute orientation
- Skim a recent paper: Autonomous Pulse Frequency Modulation for Wireless Battery Charging With Zero-Voltage SwitchingInfluential work since 2022
- Pick up a classic book: Signal-to-noise rations in a PCM/PSK systemThe most-reprinted book on the subject
- Read the landmark paper: Linear Frequency Modulation Derived Polyphase Pulse Compression CodesCited 158 times
- Go sideways: Pulse-width modulationA closely related topic
- Go sideways: Class-D amplifierA closely related topic
📖 Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
Linear Frequency Modulation Derived Polyphase Pulse Compression Codes
Optical pulse compression using high-frequency electrooptic phase modulation
Discrete pulse modulation strategies for high-frequency inverter systems
Pulse Amplitude and Frequency Modulation of Parathyroid Hormone in Plasma*
Pulse Frequency Modulation in Neural Systems
Circularly pulse‐shaped orthogonal time frequency space modulation
Spectral distortion properties of the integral pulse frequency modulation model
Fundamentals of non-linear control systems with pulse-frequency and pulse-width modulation
🆕 Influential since 2022
Autonomous Pulse Frequency Modulation for Wireless Battery Charging With Zero-Voltage Switching
Pulse Frequency Modulation for Parity-Time-Symmetric Wireless Power Transfer System
Influence of pulse modulation frequency on helium RF atmospheric pressure plasma jet characteristics
Coherent OTDR with large dynamic range based on double-sideband linear frequency modulation pulse
Pulse Frequency Modulation of 3D Wireless Power Transfer for Capsule Endoscopy
📚 Books worth reading
- 📕Signal-to-noise rations in a PCM/PSK systemH. Akima · 1976
- 📕Speech processing applications using an AM-FM modulation modelAlexandros Potamianos · 1995
- 📕Implementation of the notch technique as an RF peak pulse power standardPhilip A Simpson · 1976
- 📕Controllability aspects of fixed time pulse frequency modulated control systemsMihail Lermontov · 1971
- 📕Pulsfrequenzmodulierte RegelungssystemeEndrik Noges · 1975
- 📕Mnogochastotnye sistemy peredachi diskretnykh signalovZhurakovskiĭ, I͡U. P. · 1981
- 📕A PRF sorter based on list manipulation techniquesJ. O Coleman · 1981
- 📕Selective radio frequency pulses by optimal controlJintong Mao · 1987
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
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