Modulite  
Wireless Modulation Design (Light Version)
Wireless technology is at the forefront of today`s communication technologies. Its impact goes well beyond the traditional RF engineering community. Learning its principles and applications, understanding signal quality parameters such as EVM (Error Vector Magnitude) and how impairments and transmission paths affect them is crucial in educating the new generation of communication engineers. Tabor`s Modulite™ combined with the Wonder Wave Series allow student engineers to generate and visualize complex modulation schemes, in baseband or IF, with or without impairments, ready to be analyzed using any scope or spectrum analyzer.
Base-band (I-Q) and IF/RF signal generation
Multiple carrier capability with independent definition of modulation parameters for each carrier
High quality modulation supported by up to 16 bit DACs
Linear impairment addition
Runs under Windows 98/Me/XP/2000/NT
Supports GPIB, Ethernet and USB Interfaces
Take Advantage of the Wonder Wave Series Capabilities
To make the most of Tabor`s AWG, test engineers need the signal creation and edition tools that perform without exposure to complex signals and instrumentation. Wireless communication, with its ongoing evolution, emerging standards, increasing bandwidth and complexity requirements is an area where traditional generators must often be replaced or upgraded to keep pace with application needs. Arbitrary Waveform Generators, on the other hand, are limited only by their resolution, sampling speed, record length and intrinsic linearity. With devices reaching or exceeding 16-bit resolution, 1 GS/s and 75dB SFDR, multi-carrier, channel coded, high quality signals can be generated easily.
Signal Quality that Meets Your Expectations
Measurements of the distortion introduced by any DUT are dependent on the stimulus signal applied to them. Using MODULITE, engineers control the quality necessary to meet the expectations required by each application. Users can make trade-offs between compilation speed and ACLR, between time-domain (EVM) and frequency domain (ACLR), or simply make the most of the available hardware. Continuous signal generation requires seamless signal repetition. Modern AWGs provide seamless looping and sequencing but error--free signal generation requires continuity at all levels: sample, carrier, symbol, baseband filtering, and, in some cases, channel coding. MODULITE meets all these requirements by automatically adjusting the carrier and modulation parameters and performing continuous signal convolution to eliminate any wrap-around effects in all the component signals. The result is a clean signal without any degradation in any frequency, time, or modulation domain parameter, no matter how many carriers or modulation schemes (analog, QAM, FSK/MSK) involved. Furthermore, MODULITE supports seamless sequencing of dissimilar (different payload) signal fragments, enabling generation of pseudo-random signal sequences with real traffic spectral density behavior allowing performance of nearly impossible measurements such as residual carrier. High quality signals with multiple channels/carriers require an additional feature - uncorrelated payloads. MODULITE allows complete definition of pseudo-random binary sequences (PRBS) for payloads, controlling both the generation polynomial and the seed values in a carrier-by-carrier basis. Additionally, carrier phase can be defined by the user or at random. This feature sharply reduces the PAPR (Peak to Average Power Ratio), hence improving linearity, dynamic range and SNR.
End-to-End Modulation Scheme Support
MODULITE incorporates a complete range of modulation schemes supports including: BPSK, QPSK, O-QPSK, pi/4-DQPSK, 8PSK, O-8PSK (EDGE) QAM-16, QAM-32, QAM-64, QAM-128, QAM-256, QAM-512, QAM-1024 8-VSB, 16-VSB 2-FSK, 4-FSK, 8-FSK, 16-FSK, 32-FSK, MSK (including GMSK) Sinusoidal Analog: AM, FM, PM