Gaussian Frequency Shift Keying (GFSK)

Gaussian Frequency Shift Keying (GFSK)

Gaussian Frequency Shift Keying (GFSK) is a modulation technique used in wireless communication systems to encode digital information by smoothly transitioning the carrier signal’s frequency between different values. It employs a Gaussian filter to shape the baseband waveform signal before modulation, reducing the abrupt frequency changes typically associated with traditional Frequency Shift Keying (FSK). GFSK is known for its robustness in the presence of interference and its ability to confine emissions to a narrow spectral band, making it highly immune to noise and enhancing the reliability of wireless devices.

In the context of IO-Link Wireless, GFSK plays a crucial role in ensuring reliable and low-latency communication. IO-Link Wireless offers an exceptional level of reliability with a Packet Error Rate (PER) of 1e-9, making it significantly more reliable than other wireless standards like Wi-Fi, Bluetooth, and Zigbee. The use of GFSK modulation, combined with a repetition mechanism for critical data, helps maintain low latency and enhance the overall reliability of IO-Link Wireless in industrial applications where consistent and error-free data transmission is paramount.

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Gaussian Frequency Shift Keying (GFSK)