Abstract: As a matter of fact, digital modulation techniques such as Phase Shift Keying (PSK) and Quadrature Amplitude Modulation (QAM) are very important for modern communication systems and are ...

PSKとは、“位相偏移変調”を意味する英語「Phase Shift Keying」の略で、単一搬送波デジタル変調方式の1つです。 そもそも「変調」とは、情報を電波や光といった波に載せるための操作のことです。たとえば、ラジオでは音を電波に乗せて放送をしていますが ...

Task: You are given the following 16-PSK modulation parameters: • The bitstream to be transmitted is 1010110011011101 (16 bits). • The carrier frequency 𝑓𝑐 is 1 MHz. • The symbol rate 𝑅𝑠 is 1 kHz.

スマートフォンやタブレットの普及にも後押しされ、いまや不可欠な通信インフラとなった「無線LAN」。家電量販店には安価で高性能な無線アクセスポイントが並び、企業なかにも、一般家庭と同じような機器・セキュリティ設定で運用をされている場合が ...

Modulation is fundamental to electronic communications. The modulating signal might be analog in nature (voice or music) or digital bit streams. Most modern communication systems are digital, using ...

Binary FSK(Frequency Shift Keying) and PSK(Phase Shift keying) are extensively used in telecommunication for digital data transmission. FSK/PSK modulator circuits usually employ analogue components ...

The advent of all‐optical modulation format conversion techniques has fundamentally reshaped modern optical communications. These techniques enable the direct manipulation of optical signals in their ...

PSK_8 = exp(1j * 2 * pi * (1/8) * (0 : 7)); H = [0.2765 + 0.1957i, 1.4472 + 0.0539i, -1.5844 + 0.6201i, -0.4077 + 0.7924i; -0.6606 - 0.1926i, -0.8539 - 0.2626i, -2. ...