A new form of polynomial approximations of the discrete sinusoid waveform is proposed for
the design of a direct digital frequency synthesizer (DDFS). With the polynomial …

This In this paper, we present the Binary Frequency Shift Keying (BFSK) modulator using the
Frequency Hopping Spread Spectrum (FHSS) operating in the European band ISM 863-870 …

This brief presents an all-digital frequency synthesizer based on the flying adder (FA)
architecture. The FA is a fascinating architecture for frequency synthesizer designs due to its …

A novel direct digital frequency synthesizer (DDFS) based on a parabolic polynomial with an
offset is proposed in this paper. A 16-segment parabolic polynomial interpolation is adopted …

A direct digital frequency synthesizer (DDFS) based on a non-equal division parabolic
polynomial interpolation method is proposed in this paper. To attain high spurious free …

This paper presents a novel architecture for direct digital frequency synthesizer (DDFS)
based on a modified parabolic polynomial interpolation method. A 16-segment parabolic …

Coordinate rotation digital computer (CORDIC) is an efficient algorithm for computations of
trigonometric functions. Scaling‐free‐CORDIC is one of the famous CORDIC …

阐述了直接数字合成器(DDS) 的基本原理, 分析了现有DDS 算法的优缺点,
设计出基于二次项逼近的DDS 算法, 并给出该算法的电路实现. 最后通过该算法的仿真分析表明 …

In this paper, an equi-section division method utilizing the symmetry property and amplitude
approximation of a sinusoidal waveform to design a direct digital frequency synthesizer …

The direct digital frequency synthesizer (DDS) is a new kind of all digital frequency
synthesizer, which has fast frequency switching speed and high frequency resolution. It has …