Automation Frame Work for Conformance Testing of Dual Wire High Speed CAN / CAN FD / LIN Physical Layer Requirements

2021 ◽  
Author(s):  
Gourishankar Gupta
Keyword(s):  
High Speed ◽  
Physical Layer ◽  
Conformance Testing ◽  
Frame Work

The Analysis of the Transmission Signal Measured MIPI D-PHY

2014 ◽  
Vol 986-987 ◽  
pp. 2078-2081
Author(s):  
Wei Wei ◽  
Fei Teng Zhang
Keyword(s):  
High Speed ◽  
Physical Layer ◽  
Test Point ◽  
Point Selection ◽  
Test Analysis ◽  
Serial Interface ◽  
Test Items ◽  
Test Point Selection ◽  
Mobile Industry ◽  
Speed Mode

Analysis the characteristics of the measured transmission signal of Mobile Industry Processor Interface (MIPI) Display Serial Interface Physical Layer (D-PHY) interface based on a project platform. Firstly, introduces the transmission characteristics and mutual conversion process of physical layer about high-speed and low power mode, and by the transmission signal measured a platform of high-speed mode, present the D-PHY transmission signal each test items and test point selection, make the phone run smoothly and screen display normally, this test analysis certain practicability and expansibility.

An effective approach for dynamic analysis of rovers

Robotica ◽  
2005 ◽  
Vol 23 (6) ◽  
pp. 771-780 ◽  
Author(s):  
A. Meghdari ◽  
R. Karimi ◽  
H. N. Pishkenari ◽  
A. L. Gaskarimahalle ◽  
S. H. Mahboobi
Keyword(s):  
High Speed ◽  
Inverse Dynamics ◽  
Nonholonomic Constraints ◽  
Performance Comparison ◽  
Control Algorithms ◽  
Novel Approach ◽  
Dynamic Formulation ◽  
Dynamical Optimization ◽  
Frame Work ◽  
Multi Body

In this paper a novel approach to dynamic formulation of rovers has been presented. The complexity of these multi-body systems especially on rough terrain, challenged us to use the Kane's method which has been preferred to others in these cases. As an example, symbolic equations of a six-wheeled rover, named CEDRA Rescue Robot which uses a shrimp like mechanism, have been derived and a simulation of forward and inverse dynamics has been presented. Due to the clear form of equations, each term defines a physical meaning which represents the effect of each parameter, resulting in a frame-work for performance comparison of rovers. Although the method has been described for a 2-D non-slipping case, it is also very useful for dimensional and dynamical optimization, high speed motion analysis, and checking various control algorithms. Furthermore, it can be extended to 3-D cases and other complicated mechanisms and rovers while conserving its inherent benefits and adding to the ease of handling nonholonomic constraints.

scholarly journals MATLAB Simulation of IEEE802.11p Technology on High User’s Mobility

2021 ◽  
Author(s):  
abderrahim mountaciri
Keyword(s):  
Phase Shift ◽  
Doppler Effect ◽  
Orthogonal Frequency Division Multiplexing ◽  
High Speed ◽  
Physical Layer ◽  
Lms Algorithm ◽  
Ieee 802.11P ◽  
Vehicular Communication ◽  
Matlab Simulation ◽  
Vehicle To Vehicle

Abstract In this article proposed IEEE 802.11p Physical layer (PHY). A MATLAB simulation is performed to analyze the baseband processing of the transceiver. Orthogonal Frequency Division Multiplexing (OFDM) is applied in this project according to the IEEE 802.11p standard, which allows data transmission rates from 3 to 27 Mbps. Separate modulation schemes, bit phase shift modulation (BPSK), quadrate phase shift modulation (QPSK), and quadrature amplitude modulation (QAM), are used for different data rates. These schemes are combined with time interleaving and a convolutional error correction code. A guard interval is inserted at the start of the transmitted symbol to reduce the effect of intersymbol interference (ISI). This article studies the PHY physical layer of the IEEE 802.11p vehicular communication standard. An IEEE.802.11p PHY model, with many associated phenomena, is implemented in the V2V vehicle-to- vehicle, and the vehicle-to-vehicle ad hoc network (VANET) provides convenient coordination between moving vehicles. A moving vehicle could move at a very high speed, producing a Doppler effect that damages OFDM symbols and also causes inter-carrier interference (ICI). This article has discussed VANET technology versus 802.11a technology, as they have many differences when it comes to user mobility. The Doppler effect resulting from the mobility of the user with a high speed of 25 to 400 km / h has been studied as the main parameter, the estimation of the channel based on the lms algorithm has been proposed in order to improve the performance of the physical physical chain

scholarly journals Link State Machine of PCI Express

2020 ◽  
Vol 9 (4) ◽  
pp. 1371-1372
Keyword(s):  
High Speed ◽  
Data Transfer ◽  
Physical Layer ◽  
State Machine ◽  
Data Link ◽  
Pci Express ◽  
Hard Drives ◽  
Link State ◽  
The Common ◽  
Communication Path

PCI Express is a high-speed serial computer expansion bus standard with advance error reporting technology. It is the common motherboard interface for personal computers' graphics cards, hard drives, SSDs, Wi-Fi and Ethernet hardware connections. A link in PCIe is the communication path between transmitter and receiver. PCIe operates in all transaction, data link and physical layer. The link bring up in physical layer is essential for the link state machine to proceed further into data transfer state. This paper analyses the Link training and status state machine for the Detect, Polling, Configuration and Recovery states. The state analysis is simulated using the TS1 and TS2 packets transfer between Root Complex and End Point.

Enhance of Synchronization of Communication in TD-LTE RF Conformance Testing Instrument by GPMC

2013 ◽  
Vol 791-793 ◽  
pp. 1982-1986
Author(s):  
Fa Tang Chen ◽  
Li Qiang Guo ◽  
Peng Rui Wang
Keyword(s):  
Embedded System ◽  
Long Term Evolution ◽  
Physical Layer ◽  
Conformance Testing ◽  
General Purpose ◽  
Testing Instrument ◽  
Hardware Platform ◽  
Memory Controller ◽  
Term Evolution

In order to satisfy the requirement of reliability in the TD-LTE RF Conformance Testing Instrument, a method to achieve the synchronization of protocol and physical layer based on embedded system is imposed. According to the feature of the long term evolution (LTE) system, it highlights the details to enhance the synchronization between various aspects in the LTE system through General-Purpose Memory Controller (GPMC) from ARM. GPMC is a memory controller that helps achieve the primitive interaction between the protocol and physical layer and the application. What is more important is that GPMC achieves the coordination that means LTE works at the same time in the same frame of the same sub-frame. Verified multiple times this design achieves the synchronization of aspects in LTE as well as meets the requirement of hardware platform in TD-LTE RF Conformance Testing Instrument.

scholarly journals ISDN conformance testing, layer 1 - physical layer

1991 ◽  
Author(s):  
Shukri A Wakid ◽  
Kathleen M Roberts
Keyword(s):  
Physical Layer ◽  
Conformance Testing

scholarly journals A Novel Framework for Testing High-Speed Serial Interfaces in Multiprocessor Based Real-Time Embedded System

2021 ◽  
Vol 11 (16) ◽  
pp. 7465
Author(s):  
Sabeen Masood ◽  
Shoab Ahmed Khan ◽  
Ali Hassan ◽  
Urooj Fatima
Keyword(s):  
Embedded Systems ◽  
Embedded System ◽  
Real Time ◽  
Software Defined Radio ◽  
High Speed ◽  
Multiple Processors ◽  
Frame Work ◽  
Time Systems ◽  
Inter Process Communication

Recent years has seen a tremendous increase in processing requirements of present-day embedded system applications. Embedded systems consist of multiple processing elements (PEs) connected to each other using different types of interfaces. Many complicated tasks are accomplished by embedded systems in varied settings, which may introduce errors during inter-processor communication. Testing such systems is tremendously difficult and challenging from testing non-real time systems. A major part of testing real time embedded systems involves ensuring accuracy and timing in synchronous inter-process communication More specifically, the synchronization and inter-processor communication of real-time applications makes testing a challenging task and due to the demand for higher data rate increases, day-by-day, making testing of such systems even more complex. This paper presents a novel frame work that uses multiple instances of simulators with physical high-speed serial interfaces to emulate any real time embedded system communication. The framework presents a testing technique that detects all faults related to synchronization of high-speed synchronous serial interfaces in a systematic manner. The novelty of our approach is to simulate communication across multiple processors in a simulation environment for detecting and localizing bugs. We verify this framework using a case study consisting of an embedded software defined radio (SDR) system. The test results show the applicability of our approach in fixing bugs that relates to synchronization issues that otherwise are very hard to find and fix in very complicated systems, such as SDR.

The Design and Analysis on Communication Physical Layer of High-Speed Inter-Missile Networking

2011 ◽  
Vol 186 ◽  
pp. 332-336
Author(s):  
Yong Qi ◽  
Qian Mu Li ◽  
Xiang He Wei ◽  
Jie Yin
Keyword(s):  
Communication Network ◽  
Significant Role ◽  
High Speed ◽  
Physical Layer ◽  
Data Link ◽  
Control Center ◽  
Exchange Information ◽  
Single Data ◽  
And Control

Missile as a kind of weapon which plays a significant role in tactical strike, strategic strike and strategic deterrent, has been at the top position of the development of weapon in all country. This paper faces to the high-speed inter-missile networking, and design the deployment of the physical layer. All the missiles within the range of node running in the air automatically form a temporarily communication network, and any missile can communicate in the range of a node. When the distance between two missiles is more than the range of signal node, the message is relayed by neighbor nodes between them. Missiles can relay with satellite by configuring the satellite gateway, and send back to missile base and control center. The experiments show that the design in this paper improve the coverage of a single data link, which make the missiles efficient exchange information in network and lay a technique foundation for cooperation between missiles.

Sign in / Sign up

Export Citation Format

Share Document