The invention provides a PSK (phase shift keying) modulation recognition method based on wave form transformation. The method is highly applicable and allows higher recognition rate for signals to be recognized, under the condition of a lower signal-to-noise ratio. By making full use of features...
(2) (Phase Shift Keying) A digital modulation technique that uses two phases for a 0 or 1. Also called "binary PSK" (BPSK), it is the most basic form of phase shift keying. For example, quadrature PSK (QPSK) uses four phase shifts for each two bits of input. See phase modulation,...
whereasFDMDVuses differentialPSK. CoherentPSKis more robust against bit errors than differentialPSK. This mode has 14 subcarriers, but it's actually 7 75bd subcarriers duplicated to form the full 14, so there is strong redundancy. The entire system runs at 700bit/s, using the 700bit/sCodec...
COM-1505 INTEGRATED PSK MODEM Overview The COM-1505 is a complete digital PSK modem, including PSK modulation, demodulation, convolutional error correction, V.35 scrambling, HDLC framing, TCP-IP network interface and USB 2.0 interface. Key features and performance: PSK (BPSK, QPSK, OQPSK) ...
The kapok shape of tree is big, majestic tall and strong, the trunk and branches stretches, Chinese pear-leaf crabapple like blood, gigantic like cup, because is first long the flower bud again long leaf bud, is in full bloom when the winter falls the completely leaf blade nearly entire ...
In the simulation, based on the analysis and comparison of theperformance of v 6、arious modulation methods, and simulation model by comparingthe performance with the theoretical calculations to prove the feasibility of thesimulation model.Keyword: 4PSK; modulation and demodulation; MATLAB; Analysis ...
When using standard PSK modulation, a change in symbol value results in a change in phase of the PSK carrier of π radians. [0036] The following is an example of a look-up table to adjust the phase of the reference signal such that the output of the phase detector is at a positive...
To configure the radio interface to support guest mode, use the guest-mode command in SSID interface configuration mode. To disable the guest mode, use the no form of this command. guest-mode no guest-mode Syntax Description This command has no arguments or keywords. Command Default Guest...
This paper proposes new orthogonal space-time block codes for M-PSK modulation schemes for 3 and 4 transmit antennas. The new codes are constructed based on some special mathematical properties of M-PSK signal constellations. The proposed codes have the linear processing feature and, therefore, ...
To enable a virtual interface for a workgroup bridge client, use the infrastructure clientcommand in interface configuration mode. To disable the workgroup bridge client virtual interface, use the no form of this command. infrastructure client no infrastructure client Syntax...