Results 61 to 70 of about 1,388,291 (195)

The effect of errors in the assignment of the transmission functions on the accuracy of the thermal sounding of the atmosphere [PDF]

In order to test the error of calculation in assumed values of the transmission function for Soviet and American radiometers sounding the atmosphere thermally from orbiting satellites, the assumptions of the transmission calculation is varied with ...
Timofeyev, Y. M.
core   +1 more source

Coding and Decoding Schemes for MSE and Image Transmission [PDF]

, 2014
In this work we explore possibilities for coding and decoding tailor-made for mean squared error evaluation of error in contexts such as image transmission.
Firer, Marcelo, Panek, Luciano, Pinheiro, Jerry Anderson   +2 more
core  

Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels

, 2008
Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over Rayleigh channels is performed based on the characteristic ...
Hanzo, L, Liu, X
core   +1 more source

Multi-Objective Optimization Design of Cycloid-Pin Gears Based on RV Reducer Precision Transmission Performance

Energies
This paper aims to realize multi-objective optimization of cycloid-pin gears to improve the positioning accuracy and load-carrying capacity of the rotary vector (RV) reducer, via the consideration of backlash, transmission error, and torsional stiffness.
Yunda Zhao, Zhenhua Han, Qifeng Tan, Wentao Shan, Rirong Li, Hao Wang, Youwu Du   +6 more
doaj   +1 more source

Positivity, Discontinuity, Finite Resources and Nonzero Error for Arbitrarily Varying Quantum Channels

, 2014
This work is motivated by a quite general question: Under which circumstances are the capacities of information transmission systems continuous? The research is explicitly carried out on arbitrarily varying quantum channels (AVQCs).
Boche, H., Noetzel, J.
core   +1 more source

Research on the seedling picking trajectory error of the gear train seedling picking mechanism considering tooth backlash

Engineering Reports
The research investigated the tooth backlash influences the error in seedling picking trajectories of the gear train SPM. First, a sine function and the sum of random errors are taken into account is utilized to fit the tooth backlash of the firstly and ...
Fengjiao Du, Jiangang Liu, Peng Qi
doaj   +1 more source

An Ease-Off Based Tooth Contact Analysis Method for Measured Face Gear Flanks

Applied Sciences
To rapidly evaluate the meshing performance of manufactured face-gear drives, this study proposes an efficiency-optimized tooth contact analysis (TCA) method for measured gear flanks based on Ease-off surface. Initially, mathematical models of the pinion
Zhongwei Tang, Yuansheng Zhou, Jinyuan Tang   +2 more
doaj   +1 more source

A Comparison of Threshold Cointegration and Markov-Switching Vector Error Correction Models in Price Transmission Analysis [PDF]

We compare two regime-dependent econometric models for price transmission analysis, namely the threshold vector error correction model and Markov-switching vector error correction model.
Ihle, Rico, von Cramon-Taubadel, Stephan
core   +1 more source

Dynamic simulation of a motor longitudinally mounted on a centralized electric drive systems for pure electric vehicles under torque ripple and transmission error excitations. [PDF]

Sci Prog, 2023
Liao Z, Hua X, Cheng X, Ning X, Liu Z, Chen G.   +5 more
europepmc   +1 more source

Study on the Parameter Influences of Gear Tooth Profile Modification and Transmission Error Analysis

Machines
Gear transmission systems are widely used to transfer energy and motion and to guarantee the accuracy of the entire machine system. The modification technique is a common method that improves the gear profile and reduces the transmission error.
Di Zhou, Yonglin Guo, Jian Yang, Yimin Zhang   +3 more
doaj   +1 more source