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Broadcom announced EchoStar Communications Corp. is using its 8PSK turbo code technology across EchoStar's new DISH Network DBS receivers. As direct-to-home satellite providers struggle to find the ...
The CX24128 dual-channel tuner delivers excellent phase noise performance and very low implementation loss, which are required for advanced modulation systems such as 8PSK and DVB-S2. Key features ...
The 3π/8-8PSK modulation has both a phase and amplitude component that requires a linear power amplifier (PA). And that, as you know, means higher power dissipation, lower efficiency, more heat ...
In an 8PSK constellation diagram any change of the signal-vector position is allowed, while in a π/4DQPSK diagram only changes prohibiting the origin crossing are permissible. Abrupt changes lead to ...
In my own experience, 16QAM is harder to use than a constant envelope modulation mode, such as 8PSK, because of its sensitivity to amplitude variations. Power spikes in HPAs, supply power stability ...
For EDGE, using 3π/8 8PSK modulation, relative power must be -30 dB as measured in a 30-kHz bandwidth offset 200 kHz from the carrier. Figure 1 shows what you typically want to see in a spectrum ...
The new DVB-S2 specification allows, in addition to QPSK, for 3 bits per symbol using 8PSK modulation, at approximately 80-Mbit/s information rate. After exhaustive simulation of seven possible ...
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