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Synchronization and Receiver Design

Carrier frequency and phase recovery, timing frequency and phase recovery, AGC, I/Q imbalance compensation, and phase-locked loops

Model and simulate front-end receiver and synchronization components, including AGC, I/Q imbalance correction, DC blocking, and timing and carrier synchronization.

Functions

iqcoef2imbal Convert compensator coefficient to amplitude and phase imbalance
iqimbal2coef Convert I/Q imbalance to compensator coefficient
channelDelay Channel timing delay

Objects

comm.AGC Adaptively adjust gain for constant signal level output
comm.CarrierSynchronizer Compensate for carrier frequency offset
comm.SymbolSynchronizer Correct symbol timing clock skew
comm.PreambleDetector 检测中我n data
comm.CoarseFrequencyCompensator Compensate for frequency offset of PAM, PSK, or QAM signal
comm.IQImbalanceCompensator Compensate for I/Q imbalance
comm.DiscreteTimeVCO Generate variable frequency sinusoid
comm.GMSKTimingSynchronizer Recover symbol timing phase using fourth-order nonlinearity method
comm.MSKTimingSynchronizer Recover symbol timing phase using fourth-order nonlinearity method

Blocks

AGC Adaptively adjust gain for constant signal-level output
Carrier Synchronizer Compensate for carrier frequency offset
Symbol Synchronizer Correct symbol timing clock skew
Preamble Detector 检测中我n data packet
Coarse Frequency Compensator Compensate for carrier frequency offset for PAM, PSK, or QAM
I/Q Compensator Coefficient to Imbalance Convert compensator coefficient into amplitude and phase imbalance
I/Q Imbalance Compensator Compensate for imbalance between in-phase and quadrature components
I/Q Imbalance to Compensator Coefficient Converts amplitude and phase imbalance into I/Q compensator coefficient
Discrete-Time VCO (To be removed) Implement voltage-controlled oscillator in discrete time
MSK-Type Signal Timing Recovery Recover symbol timing phase using fourth-order nonlinearity method
Baseband PLL (To be removed) Implement baseband phase-locked loop
Charge Pump PLL (To be removed) Implement charge pump phase-locked loop using digital phase detector
Continuous-Time VCO (To be removed) Implement voltage-controlled oscillator
Linearized Baseband PLL (To be removed) Implement linearized version of baseband phase-locked loop
Phase-Locked Loop (To be removed) Implement phase-locked loop to recover phase of input signal

Topics

Synchronization Fundamentals

MATLAB

万博1manbetx

  • MSK Signal Recovery
    This model shows how channel impairments such as timing phase offset, carrier frequency offset, and phase offset for a minimum shift keying (MSK) signal are modeled.