SEMCAD X ANTENNA is a full wave FDTD solution addressing all radiation and propagation of electromagnetic waves. AWGN (real and complex, scalar and vector).Included are fading, multipath, bandlimited, and Gaussian noise models: VisSim/Comm includes a variety of predefined channel models supporting both fixed and mobile service scenarios. In addition, for designs that require the modeling of RF components, VisSim/Comm provides models for amplifiers, mixers, splitters, attenuators, couplers, and switches, including noise figure and nonlinear effects. Full support is also provided for the design of phase locked loops, including loop filter and VCO elementsįor designs where encoding is required, VisSim/Comm supports both conventional coding techniques (convolutional, Reed-Solomon, trellis-based) as well as more advanced methods such as the UMTS or LTE Turbo Codes. The VisSim/Comm block set provides a variety of modulators and demodulators, including standard analog, PSK, QAM and differential formats. You can construct a wide range of models including analog, digital and mixed mode designs, and quickly simulate their behavior. VisSim/Comm lets you build both transmitter and receiver models, from a first principles perspective, by simply selecting and connecting predefined blocks. Ericsson Inc., a leading developer and manufacturer of cellular and PCS consumer electronics, has been using VisSim/Comm for years in their research and development efforts.Ĭommunication system design can be divided into two categories: transmitter design and receiver design.
In short, VisSim/Comm makes it easy to build, modify and maintain even the most complex system models.
And all modeling and simulation tasks can be completed without writing a line of code. This tightly integrated development platform allows you to simulate and view signal waveforms at any stage of the communication system chain. Using VisSim/Comm, you can freely move among the stages of model construction, simulation, optimization, and validation. VisSim/Comm was rebadged as "Commsim" by Electronic Workbench and sold by them for a number of years. The communication block set includes RF, UWB, Bluetooth, 802.x, Turbo Codes, Costas loop, PLL, VCO, BPSK, QPSK, DQPSK, QAM, BER, Eye Diagram, Viterbi, Reed-Solomon and much more. With a full complement of communication blocks and a powerful, time-domain simulation engine, VisSim/Comm provides fast and accurate solutions for analog, digital, and mixed-mode communication system designs. Based on the core VisSim engine, VisSim/Comm) is used for the modeling and simulating end-to-end communication systems at the signal or physical level.
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