Simplest (and most expensive) approach may be to combine the outputs of N number of separate signal generators through an N-way power divider. Digital sources, such as a direct digital synthesizer (DDS), can also be used to generate multiple tones, although at a more limited total bandwidth and with less output power than separate signal generators. Similarly, a vector signal generator, which i...

A novel design method of chaotic signal generator based on digital signal processing for three-dimension system is presented in this paper. We illustrate the structure and function of each module in this system. By comparing the experimental results with the simulation results, the feasibility of this method is verified. The proposed chaotic signal generator can offer a new alternative in rando...

Abstract: In this paper, the control scheme of a distributed high-speed generator system with a total amount of 12 generators and nominal generator speed of 7000 min−1 is studied. Specifically, a fault tolerant control (FTC) scheme is proposed to keep the turbine in operation in the presence of up to four simultaneous generator faults. The proposed controller structure consists of two layers: T...

Here are.two broadband, programmable, high-spectral-purity microwave signal sources, a 2-to-1 8-GHz synthesized signal generator and a 2-to-6.2-GHz synthesizer. Both are single, compact, 13-cm-high instruments. tr REQUENCY SYNTHESIZERS are signal sources l' that produce a selected output frequency by some type of arithmetic operation on a stable reference signal, which is usually derived from a...

In their paper “A Provably Secure True Random Number Generator with Built-in Tolerance to Active Attacks”, B. Sunar, W. Martin, and D. Stinson propose a design for a true random number generator. Using SPICE simulation we study the behaviour of their random number generator and show that practical implementations result in a too high frequency signal to be processed with current CMOS technology.

This paper discusses on the UWB carrier frequency generator that is capable of fast switching between different center frequencies. By using a switching network, the different frequencies from different local oscillators are switched within 4ns. A new topology of NMOS switch based on series-shunt configuration is proposed so that it is able to pass the signal from oscillators to output without ...

A low-power and low-complexity impulse radio ultra-wideband (IR-UWB) pulse generator is presented in the paper. The tunable architecture is composed of a data and clock synchronization block, a controlled glitch generator, an adjustable two-stage buffer, and a pulse shaping filter. The generator has ability of the power spectral density (PSD) peak and central frequency adjustment. This is accom...

AC motors play a vital role in industrial and domestic applications. Due to different tasks of application, most of the industries need to have variable speeds of operation of AC motors using Variable Frequency Drives (VFDs). The operation of VFDs is controlled by control signals from reference signal generator. Here, it has to be noted that transfer of analog control signal to the electric dri...