Proceedings ArticleDOI
Direct Digital Frequency Synthesis
A.L. Bramble
- pp 406-414
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This article is published in IEEE Frequency Control Symposium.The article was published on 1981-05-27. It has received 59 citations till now. The article focuses on the topics: Digital down converter & Phase noise.read more
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Journal ArticleDOI
Multibeam Antenna Technologies for 5G Wireless Communications
Wei Hong,Zhi Hao Jiang,Chao Yu,Jianyi Zhou,Peng Chen,Zhiqiang Yu,Hui Zhang,Binqi Yang,Xingdong Pang,Mei Jiang,Yu Jian Cheng,Mustafa K. Taher Al-Nuaimi,Yan Zhang,Jixin Chen,Shiwen He +14 more
TL;DR: This paper provides an overview of the existing multibeam antenna technologies which include the passiveMultibeam antennas (MBAs) based on quasi-optical components and beamforming circuits, multibeams phased-array antennas enabled by various phase-shifting methods, and digital MBAs with different system architectures.
Proceedings ArticleDOI
An Analysis of the Output Spectrum of Direct Digital Frequency Synthesizers in the Presence of Phase-Accumulator Truncation
H.T. Nicholas,Henry Samueli +1 more
TL;DR: A novel modification to the conventional phase accumulator structure results in a 3.922dB reduction in the magnitude of the worst case spurious response, which is shown to average out the error effects of DAC nonlinearities and roundoff in the stored sine ROM samples.
Proceedings ArticleDOI
The optimization of direct digital frequency synthesizer performance in the presence of finite word length effects
TL;DR: Techniques for the design of VLSI architectures for direct digital frequency synthesis have been introduced that allow for the optimization of the spurious response in the presence of finite-wordlength effects and these techniques have been applied to design a 14-bit-output DDFS.
Journal ArticleDOI
Methods of mapping from phase to sine amplitude in direct digital synthesis
TL;DR: A computer program has been created to simulate the effects of the memory compression and algorithmic techniques on the output spectrum of the DDS.
Proceedings ArticleDOI
Methods of mapping from phase to sine amplitude in direct digital synthesis
TL;DR: A computer program has been created to simulate the effects of the memory compression and algorithmic techniques on the output spectrum of the DDS.
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Related Papers (5)
An Analysis of the Output Spectrum of Direct Digital Frequency Synthesizers in the Presence of Phase-Accumulator Truncation
H.T. Nicholas,Henry Samueli +1 more