demodulation相关论文
High precision demodulation for fiber bragg grating sensors based on the temperature calibrated line
Using linear indium gallium arsenide (InGaAs) photodiode array to detect wavelength of fiber Bragg grating (FBG) sensors......
Burst signal is a kind of communication signals,we use burst mode for communication to reduce duration time,however,ther......
给出了一种基于均方误差估计的非本征光纤法布里-珀罗(EFPI)传感器的腔长解调算法。在参量估计方面, 均方误差将估计子的方差和偏......
为了更方便地编写基于串口通信的光纤光栅传感网络的分析软件，实现对光纤光栅传感网络的远程控制，设计了一种VB语言环境下编写光纤光......
针对可见光通信（VLC）中的翻转/单极性正交频分复用（Flip/U-OFDM）系统，提出了对偶最大似然（ML）接收机。对偶ML在时域对Flip/U-OFDM部分信号......
An Arc Tangent Function Demodulation Method of Fiber-Optic Fabry-Perot High-Temperature Pressure Sen
A new demodulation algorithm of the fiber-optic Fabry-Perot cavity length based on the phase generated carrier (PGC) is ......
Backpropagation neural network method in data processing of ultrasonic imaging logging-while-drillin
The existing methods for extracting the arrival time and amplitude of ultrasonic echo cannot effectively avoid the local......
We present a new method for the analysis of Abell 1835 observed by XMM-Newton.The method is a combination of the Direct ......
Al-digital demodulation system of interferometric fiber optic sensors using an improved PGC algorith
We present an all-digital demodulation system of interferometric fiber optic sensor based on an improved arctangent-diff......
The first step of phasing in any de novo protein structure determination using isomorphous replacement (IR) or anomalous......
A high sensitivity fiber Bragg grating pressure sensor by using mechanical amplifier is demonstrated. The measured press......
The paper presents a kind of transmission system which employs M-ary Position Phase Shift Keying(MPPSK) to send data and......
A new universal algorithm of modulation and demodulation is presented to process most signals of digital phase-related ......
Low complexity method for spreading sequence estimation of DSSS signal in non-cooperative communicat
It is a necessary step to estimate the spreading sequence of direct sequence spread spectrum (DSSS) signal for blind des......
A new surface acoustic wave differential quadraphase shift key(SAW DQPSK) spread spectrum(SS) signal matched filter base......
For the conventional modulation and demodulation of Minimum Frequency Shift Keying(MSK), the new models for modu- lation......
A modified genetic algorithm (GA) has been proposed, which was used to wavelength demodulation in quasi-static fiber gra......
This paper presents an equalization algorithm for continuous phase modulation (CPM) over frequency-selective channels. A......
A novel temperature-insensitive strain sensor based on bandwidth demodulation of the reflected light from the tapered fi......
Real-time displacement measurement with large range and high accuracy using sinusoidal phase modulat
To resolve the conflict of large measurement range and high accuracy in the existing real-time displacement measurement ......
Overlapped time division multiplexing (OvTDM) is a new type of transmission scheme with high spectrum efficiency and low......
A new demodulation technique for optical fiber interferometric sensors with[3×3]directional couplers
Optical fiber interferometric sensors based on[3×3]couplers have been used in many fields.A new technique is proposed t......
An open-loop resonator micro-optic gyro (R-MOG) with a 6 cm-long waveguide-type ring resonator is set up using the phase......
Design and experimental analysis of fiber grating vibration demodulation system based on the 3×3 cou
A novel fiber grating vibration demodulation system, based on 2×2 and 3×3 couplers, is designed. Based on the phase un......
In this paper,a digitized real-time demodulation system for optical hydrophones based on a 3×3 coupler is proposed.The ......
Matched filter is one of the key technologies to achieve high-speed data transmission. In this paper,a parallel finite-i......
Numerical investigation of multi-beam laser heterodyne measurement with ultra-precision for linear e
This paper proposes a novel method of multi-beam laser heterodyne measurement for metal linear expansion coefficient.Bas......
In this paper,we propose a novel method of multi-beam laser heterodyne measurement for micro-impulse.The measurement of ......
We measure the half-wave voltage of LiNbO 3 phase modulators in a 26-GHz wideband frequency range, and then analyze it b......
A multichannel fiber-optic Fabry-Perot (F-P) demodulator based on nonscanning correlation demodulation is proposed. The ......
A single-frequency retrievable phase modulated multi-tone fiber amplifier is presented in theory and demonstrated in exp......
Self-mixing interference(SMI) technique can be used for measuring vibration, displacement, velocity and absolute distanc......
This letter presents a low cost solution for wavelength division multiplexed orthogonal frequency division multiplexed p......
A dual-frequency laser Doppler velocimeter implemented by a dual-polarization fiber grating laser is proposed,with the t......
Optical fiber acceleration seismometer as an important instrument can offer high sensitivity, anti-jamming and non-touch......
A high stability in-circuit reprogrammable technique control system for a capacitive MEMS accelerometer is presented. Mo......
Phase-Sensitive Optical Time-Domain Reflectometer Based on a 120°-Phase-Difference Michelson Interfe
A phase-sensitive optical time domain reflectometer(φ-OTDR) based on a 120°-phase-difference Michelson interferometer ......
The study of third harmonic demodulation in phase modulation optical heterodyne technique using opti
With the technique of phase modulation optical heterodyne(PMOH), we detected the beat-frequency signal of the reflected......
To solve blade number characteristic extraction problem of low noise ships,phase characteristics of ship radiated-noise ......
Although many methods have been applied to diagnose the gear fault currently,the sensitivity of them is not very good.In......
Spectrum analysis of natural gamma ray spectral logging(SGR) data is a critical part of surface information processing s......
Computed transfer functions for ε=0.60 and 0.75 annular pupils of 2.67 mm o.d. showthat absorption of the average sphe......
Interaction of fatigue crack with vibration and ultrasound in metallic rod and its use for quantitat
According to the principle of synchronous demodulation,the modulation information in the output signal of vibro-acoustic......
The effect of carrier phase error in digital image transmission system is discussed. Code error rate and SNR with carrie......
The analysis of the radiated noise of vessels given in this paper showssome strong superposed line components in low fre......
The concept of virtualization of wireless communication systems is based on the open and scalable hardware platform of s......
In this letter, a universal receiver structure with modulation classification and synchronization recovery for MDPSK si......
A new method of estimating the frequency-known signals from the strong background noise was presented first. Then the n......
The proposed scheme is based on Discrete Fourier Transform (DFT) domain processing. The key technology of this scheme i......
