The Open Radar Data Acquisition (ORDA)
subsystem replaces the current WSR-88D Radar
Data Acquisition subsystem with improved
receiver and signal processing hardware and with
improved user interface, signal processing and
diagnostics software. This paper will discuss the
input data from the digital receiver, the ORDA
signal processing, and the data output from the
ORDA hardware. Specifications of the ORDA
digital receiver will be presented. The paper
outlines the critical radar signal processing flow
and provides analysis of new spectrum width
computations and clutter filtering schemes used in
the ORDA system. Where appropriate, ORDA
performance enhancements, data quality
improvements and reliability and maintenance
improvements will be highlighted.
This
paper presents a new adaptive mobility-aware MAC protocol
for sensor networks (MS-MAC). The protocol uses any change
in received signal level as an indication of mobility and, when
necessary, triggers the mobility handling mechanism. By doing
this way, the new mobility-aware MAC protocol can work very
energy-efficiently when the network is stationary, whereas it can
maintain some level of network performance when there are
mobile sensors.
SiftGPU is an implementation of SIFT [1] for GPU. SiftGPU processes pixels parallely to build Gaussian pyramids and detect DoG Keypoints. Based on GPU list generation, SiftGPU then uses a GPU/CPU mixed method to efficiently build compact keypoint lists. Finally keypoints are processed parallely to get their orientations and descriptors.
This approach, we feel, came very close to obtaining an image from the camera OV7620. Before we tried to capture a camera signal, we successfully transferred a test image from the FPGA s onboard RAM modules through RS232 to the PC program. This file do it.
Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy machinery and engines because the noise is selectively eliminated. Desired sounds, such as speech and warning signals, are left to be heard clearly. The adaptive control algorithm is implemented on a Texas Instruments (TI™ )
1
TMS320C30GEL digital signal processor (DSP), which drives a Sony CD550 headphone/microphone system. Our experiments indicate that adaptive noise control results in a dramatic improvement in performance over fixed noise control. This improvement is due to the availability of high-performance programmable DSPs and the self-optimizing and tracking
capabilities of the adaptive controller in response to the surrounding noise.
kalman filter matlab tool help full for understanding the coding for the kalmanfilter, which can either be used for any purposes which could be help for digital signal processing, wirless mobile communication , OFDM .
This circuit is a nice edge detector that gives you
synchronous notification of edges on your input signal. There s no excuse for not doing this it s a tiny
circuit in just five lines of Verilog.
RF Amplifier Design：1. Active devices and S-parameters
2. Amplifier impedance matching technique
3. Power gain of amplifiers
4. Stability of RF amplifiers
5. Power gain circles of amplifiers
6. Bias networks of active devices
7. Small signal amplifier design example
The TJA1040 is an advanced high speed CAN transceiver for use in
automotive and general industrial applications. It supports the differential
bus signal representation described in the international standard for
in-vehicle high speed CAN applications (ISO11898). CAN (Controller Area
Network) is the standard protocol for serial in-vehicle bus communication,
particularly for Engine Management and Body Multiplexing.
The TJA1040 provides a Standby mode, as known from its functional
predecessors PCA82C250 and PCA82C251, but with significantly
reduced power consumption. Besides the excellent low-power behavior
the TJA1040 offers several valuable system improvements. Highlights are
the absolute passive bus behavior if the device is unpowered as well as
the excellent EMC performance.
HIGH SPeed serdes designs and connectors and simulation models simulations used in signal Integrity and also has practical evaluation aof all connectors
