Standards and Technical Documents - Recommended methods of measurement on receivers for television broadcast transmissions, Part 5: Electrical measurements on multichannel sound television receivers using the NICAM two-channel digita... -- IEC 60107-5:1992
Description: Applies to television receivers designed for the reception of television broadcasts using the two-channel digital sound system. The sound coding-system is based on NICAM 728 and is transmitted by a quadrature phase-shift keying (QPSK) modulated digital subcarrier.
Supplier: American Microsemiconductor, Inc.
Description: Quadrature Phase Shift Keying Demodulatr
- Product Type: I/Q Demodulators
- Package Type: Surface Mount Technology (SMT), Other
- Modulation (I/Q) Frequency: 1.50E8 Hz
Standards and Technical Documents - PROJECT 25 LAND MOBILE RADIO TRANSCEIVER PERFORMANCE RECOMMENDATIONS, DIGITAL RADIO TECHNOLOGY C4FM/CQPSK MODULATION -- TIA-102.CAAB
Description: modulation (C4FM) or compatible differential offset quadrature phase shift keying (CQPSK) or standard simulcast modulations for systems using digital modulation for transmission of voice or circuit switched data compliant with the Um reference point in [102.BAAA], which defines the requirements of both
Supplier: Skyworks Solutions, Inc.
Description: Skyworks SKY72300-21 direct digital modulation fractional-N frequency synthesizer provides ultra-fine frequency resolution, fast switching speed, and low phase-noise performance. This synthesizer is a key building block for high-performance radio system designs that require low power and fine step
- Frequency Range: 2.10E9 Hz
Supplier: Microchip Technology, Inc.
Description: for Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), or FM modulation. The rfRXD0920 is compatible with rfPIC™ and rfHCS series of RF transmitters. Received Signal Strength Indicator (RSSI) Selectable LNA gain setting 100nA standby current Selectable LNA gain control for improved dynamic
- Device Type: Receiver
- Technology: ZigBee®
- Interface: Other
- Supply Voltage: 2.5 V, 2.7 V, 3 V, 3.3 V, 3.6V, 5 V, Other
Supplier: Techwell, Inc.
Description: Accumulator (ACC) are programmable. Applications Frequency Synthesis Modulation - AM, FM, PSK, FSK, QAM Demodulation, PLL Phase Shifter Polar to Cartesian Conversions
- Data Bus: 16-Bit
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Offset Quadrature Amplitude Modulation Offset Quadrature Phase Shift Keying Operating Systems Operator System Interface Operation Support System Orthogonal Transmit Diversity Orthogonal Variable Spreading Factor Parallel to Serial (conversion) Private Automatic Branch eXchange Packet Associated Control CHannel Personal Access Communications System Packet Assembly/Disassembly …
Impact of Nonlinearities on Fiber Optic Communications
C. Laperle, B. Villeneuve, Z. Zhang, D. McGhan, H. Sun, M. O’Sullivan, Wavelength division multiplexing (WDM) and polarization mode dispersion (PMD) performance of a coherent 40Gbit/s dual-polarization quadrature phase shift keying (DP-QPSK) transceiver.
High Spectral Density Optical Communication Technologies
R.A. Griffin, A.C. Carter, Optical differential quadrature phase shift key (oDQPSK) for high- capacity optical transmission.
100 Gb/s DQPSK field trial: Live video transmission over an operating LambdaXtreme® network
Abstract Successful transmission of live (real time) video traffic is demonstrated using a prototype 100 Gb/s single‐polarization differential quadrature phase shift keying (DQPSK) transmitter and receiver over an in‐service 504 km link of the LambdaXtreme® optical transport platform.
Mixed Signal VLSI Wireless Design
Signal-space diagram for quadrature phase shift keying (QPSK) modulation.
Short-range ultrasonic communications in air using quadrature modulation
Simulations were first performed to establish the likely performance of quadrature phase shift keying over the limited bandwidth available in an ultrasonic system.
Quadrature-quadrature phase-shift keying
D. Saha, “Quadrature- quadrature phase shift keying ,” Ph.D. disserta- tion, Univ.
CMOS Front Ends for Millimeter Wave Wireless Communication Systems
115 5.3 A 120-GHz Quadrature Phase Shift Keying Transmitter . . . . . . . . . .
Radio Systems Engineering
2.7.4 Quadrature Phase Shift Keying Modulation—QPSK..
Wireless Receiver Design for Digital Communications
• Quadrature phase shift keying (QPSK) .
Low peak‐to‐average power ratio and efficient multicarrier spread spectrum transceivers using hybrid and quadrature cyclic shift orthogonal keying
An important example is the hybrid quadrature phase shift keying (QPSK)–CSOK case, in which a spreaded symbol block of N chips carries one QPSK symbol and one CSOK symbol at the same time.
8 Tb/s long haul transmission over low dispersion fibers using 100 Gb/s PDM‐QPSK channels paired with coherent detection
Several research publi- cations [1, 6, 9, 16, 19] have thus demonstrated the feasibility of 100Gb/s wavelength division multiplexed (WDM) long-haul transmissions using polarization division multiplexed quadrature phase shift keying (PDM-QPSK) paired with a coherent receiver.