This Application Note provides an overview of the Bit Error Rate (BER) test capabilities of the Universal Radiocommunication Tester CMU300 on GSM / EDGE Base Stations. It includes information about measurement principles, the supported test environm
Based on the renowned Code Excited Linear Prediction (CELP) coding model, the G.729 speech compression standard delivers toll-quality speech, similar in quality to 32-kbps ADPCM but at one-quarter the bit rate. With the low rate of 8 kbps, G.729 is
A standard on low bit rate coding for mono or stereo audio signals was established by MPEG-1 Audio in ISO/IEC 11172-3. This standard is applicable for carrying of high quality digital audio signals associated with or without picture information on s
iLBC is a VOIP codec originally created by Global IP Sound but made available (including its source code) under a restricted but free and fairly liberal license, including permission to modify. Quoted from: http://www.ilbcfreeware.org/ What is iLBC?
Abstract Since the MPEG-1 Layer III encoding technology is nowadays widely used it might be interesting to gain knowledge of how this powerful compression/decompression scheme actually functions. How come the MPEG-1 Layer III is capable of reducing
LPC2119的手册，有其原理图及其他的信息。希望对各位朋友有点帮助，我也是初学者，互相交流.The LPC2109/2119/2129 are based on a 16/32-bit ARM7TDMI-S CPU with real-time emulation and embedded trace support, together with 64/128/256 kB of embedded high-speed flash memory. A 128-bit wide memory
A method of multi-channel receiving for high bit rate heterodyne direct-detection optical orthogonal frequency-division-multiplexing (OOFDM) system is proposed to reduce the sampling rate demand of analog-to-digital converter (ADC). The sampling rate
A tunable optical rail is embedded into the cavity of a nonlinear-polarization-rotation (NPR) mode-locked fiber laser to generate a sampling pulse with different repetition frequencies and realize bit-rate-adaptive software synchronous optical sampli
A comprehensive model of the Semiconductor Optical Amplifier with experimental validation result is presented. This model accounts for various physical behavior of the device which is necessary for high bit-rate system application.
A photonic approach for the generation of an amplitude- and phase-modulated microwave signal with tunable frequency and modulation bit-rate is proposed and demonstrated. Two coherent optical wavelengths are generated based on external modulation by b
