The report presents the results of an experimental evaluation of a linear, polar-display signal analyzer. Signals generated in the laboratory are used to determine the ability of the device to indicate the type of carrier modulation and the carrier parameters such as frequency, data rate, and bandwidth. Live signals in the HF band are monitored by applying the predetected output of an R-390A receiver directly to the signal analyzer. Photographs of the actual displays resulting from signals generated in the laboratory demonstrate the ability of the system to provide a distinctive display in each case. Various parameters of the input signal can be determined by measuring parameters of the display. The ability of the signal analyzer to determine the normalized autocorrelation function of a bandpass gaussian process is demonstrated. (Author)
|Statement||by Norbert James Spitzer and Glen A. Myers|
|Contributions||Myers, Glen A., Naval Postgraduate School (U.S.)|
|The Physical Object|
|Pagination||78 p. :|
|Number of Pages||78|
Abstract. The report presents the results of an experimental evaluation of a linear, polar-display signal analyzer. Signals generated in the laboratory are used to determine the ability of the device to indicate the type of carrier modulation and the carrier parameters such as Author: Norbert James Spitzer. For each signal, zero span and demodulation analysis are performed. Zero span is a mode of a spectrum analyzer in which the local oscillator does not sweep, i.e., remains fixed at a given frequency. This feature allows the analyzer to be used as a fixed-tuned receiver, which provides the signal amplitude (or power) variations as a function of by: 4. The output signals of the DAC are up-converted by a local oscillator (LO), and those signals enter a laterally diffused metal-oxide semiconductor (LDMOS) PA. The final RF signals are decoded by performing signal analyzer measurements. In the performance evaluation, the system bandwidth is 10 MHz and the RF center frequency is by: 4. The eye closure and signal quality degradation is attributed to the attenuation in the fibre and hence the receiver requires more power to demodulate the signal at the same minimum acceptable BER of 10 −9. The experimental results obtained in this work, indicate that DSP algorithm is a competitive method for performance monitoring in any.
Digital Signal Processing Laboratory B. Preetham Kumar Kumar (electrical and electronic engineering, California State University) offers a practical text for those studying digital signal processing (DSP) for the first time, combining background on theory with material on hardware and software aspects of DSP. A DSP-based FFT-analyzer for the fault diagnosis of rotating machine based on vibration analysis June IEEE Transactions on Instrumentation and Measurement - vol In this paper, a concentration evaluation of reading behaviors with electrical signal detection on the head is presented. The electrode signal is extracted by brain–computer-interface (BCI) to monitor the user's degree of concentration, where the user is reminded by sound to concentrate, or teaching staffs are reminded to help users improve reading habits, in order to facilitate the user's. The output dynamical displacement response and excitation signal are captured synchronously by the dynamical signal analyzer. The frequency response function (FRF) is obtained, depicted in fig in which the Hz peak obviously corresponds with 1st modal vibration in the piston motion direction. Meanwhile, a linear chirp signal from 0.
The paper describes a method aimed at providing objective diagnostic testing of skilled locomotor stereotypes. Bioelectric muscle activity indices and ground reaction force data are used to represent a movement structure, in a schematised way, using discrete states in time. Athletes were asked to perform one specific movement structure: a backward somersault from the standing position. Signal Analyzer (DSA), an accelerometer (PCB B03) of sensitivity 5 m V/g with freque ncy range of 1- Hz and an impact hammer (PCB C03) of. The load resistance is 50Ω. This low gain circuit is sensitive to the degradation of the carrier to noise ratio (CNR) of the receiving signal. When the fiber length, the signal frequency, and the PMD and PML change, the digradation in the CNR affects the RCE in the WiMAX transmission. The RCE was measured at a Vector Signal Analyzer (VSA). Noise and Vibration Analysis Signal Analysis and Experimental Procedures. By: nemub. On: In: With: 0 Comments. Noise and Vibration Analysis Signal Analysis and.