The transmitter consists of modulator, LED driver and LED, and the receiver is composed of photo detector (PD), amplifier, demodulator and decision device. The modulator refers to ASK, FSK and DPSK ..

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30 ‘Non-Standard Facilities’ (NSF) features. For recorded files using low-speed demodulation, an auto-detect mode that does not rely on FSK frames is also available. This allows for fax demodulation ...

16-bit BFSK demodulator with complex or real data samples. Suitable for passband or baseband operation. Ideal for use in low cost / low power RF applications. Small implementation size. Typical symbol ...

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Firstly, the frequency Shift Keying (FSK) modulation technique was used to send data through the channel as a telecommunication part. Secondly, RLS adaptive filtering methodology was used to extract ...

Theoretically the proposed demodulation scheme is not influenced by the zeros of the Bessel functions, and can keep a good performance in a wide range of modulation depth. It is compared with ...

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To address this issue, we propose a variable modulation SCMA (VM-SCMA) that allows users to employ codebooks with different modulation orders. To guide the VM-SCMA design, a VM matrix (VMM) that ...

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In this section you'll find photographic features that explore holidays and photography courses, details about members meetings, trials and tribulations of installing new software along with ...