نتایج جستجو برای: digital radio

تعداد نتایج: 401333  

2013

The TDA7528 is a front-end module for use in car radio receivers with digital IF processing, using the STA3004, respectively the STA3005 backend IC. Its field of use includes all the current radio broadcast services in the range of 50kHz to 163MHz for AM radio, FM radio and US weather band. Digital standards such as DRM and HD radio can also be handled. A single supterheterodyne architecture wi...

2011
Myung-Sun Baek Yonghoon Lee So Ra Park Geon Kim Bo-Mi Lim Yun-Jeong Song Yong-Tae Lee

This paper presents the field trial results of digital audio broadcasting (DAB), DAB+ and terrestrial-digital multimedia broadcasting (TDMB) audio systems to provide useful information about each digital radio broadcasting standard. Although the all methods are representative digital radio broadcasting standards based on Eureka-147, they have different parts from each other. This field trial re...

2004
David Farrell Aaron Oakley

This paper explores the state of the art in FPGA based software radio, and demonstrates the concepts in an example design. The trend in software radios is moving toward an all-digital design within a single chip. Most elements of a digital radio can now be implemented within a DSP or an FPGA. Many vendors provide intellectual property cores, which make up the building blocks of a software radio...

2014
Myung-Sun Baek Yonghoon Lee Sora Park Geon Kim Bo-mi Lim Yong-Tae Lee

Since digital radio broadcasting techniques can give highly enhanced performance and quality (e.g. CD like audio quality, single frequency network, slide show, etc), many countries pay attention to converting their analog radio broadcasting services into digital services. In Korea, to digitize radio broadcasting service, various trials have been executed since 2009 [1]-[2]. This paper deals wit...

2012
Beena R Ballal

In order to meet the ever increasing demand for larger transmission bandwidth, Wireless network based on radio-over-fiber technologies is a very beneficial solution. Various disadvantages of Analog Radio over Fiber link such as non-linearity, chromatic Dispersion can be mitigated by use of Digital Radio over Fiber link. A digitized RF-over-Fiber transmission scheme based on Bandpass Sampling th...

1998
Jonathan Stott

Digital Radio Mondiale is a system which promises to re-invigorate the use of the broadcasting bands below 30 MHz. It offers a dramatic improvement in audio quality, not only improving the audio bandwidth and signal-to-noise ratio, but also countering the effects of selective fading and audible interference from other stations. It is also designed to support various features that will make rece...

1998
Peter Jackson

The DRM system, and the primary audio coding used, have been described in previous articles of EBU Technical Review [2][3]. The system specification has been published by both ETSI {TS 101 980 V1.1.1 (200109)} and the IEC (PAS 62272-1) and is the subject of an ITU recommendation, BS1514. There is also a new draft ITU recommendation, BS1514-1, which includes minimum signal strength and protectio...

2014

This Recommendation provides the error performance objectives for real digital radio-relay links forming part of the high-grade portion of international digital connections at a bit rate below the primary rate within an integrated services digital network. This Recommendation also provides the guidance on the factors in determining performance requirements for real digital radio-relay links for...

2011
Muhammad Faisal Youngmin Park David D. Wentzloff

This paper presents recent work on reconfigurable all-digital radio architectures. We leverage the flexibility and scalability of synthesized digital cells to construct reconfigurable radio architectures that consume significantly less power than a software defined radio implementing similar architectures. We present two prototypes of such architectures that can receive and demodulate FM and FR...

2002
V. N. CHRISTOFILAKIS A. A. ALEXANDRIDIS P. KOSTARAKIS K. P. DANGAKIS

A software defined radio (SDR) system is based on state-of-the art technologies covering topics such as: smart antennas, radio frequency (RF) down/up converters, analog to digital converters (ADCs) and digital to analog converters (DACs), digital signal processors (DSPs), modelling and system description languages. This paper is focused in the ADC and studies the various parameters affecting it...

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