Waiting time jitter reduction by the optimum random stuff threshold modulation

A new technique for the control of waiting time jitter in pulse-stuffing digital multiplexing systems is proposed. Combining a new threshold modulation scheme and an efficient threshold boundary optimization process, this method achieved significant improvement in waiting jitter control capability. By using the optimum threshold boundary, the proposed threshold modulation scheme converts the waiting time jitter into a high enough frequency that the jitter can be rejected by the phase smoothing circuit. To analyze the performance of this new method, a simulation model is built. The simulation results are compared with other pulse stuffing algorithms and demonstrates the effectiveness of the new proposal for jitter control. All of the parameters of the design can be emulated by a software program in advance. This new method is named “optimum random stuff threshold modulation (ORSTM)”