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Multipath mitigation is a term typically used in Code Division Multiple Access (CDMA) communications and in GNSS navigation to describe the methods that
Multipath_mitigation
Belgian satellite navigation company
Septentrio’s products make use of APME, the company’s original multipath-mitigation technology, on-the-fly ambiguity fixing schemes based on the LAMBDA
Septentrio
GNSS receiver implemented in software
monitoring: yes Multi-correlator: yes Sample data recording: yes Multipath mitigation: yes (several algorithms) GNSS-SDRLIB General information: Publication:
GNSS software-defined receiver
GNSS_software-defined_receiver
Principal protocol used to stream data across an IP network
handover capabilities. Multipath TCP also brings performance benefits in datacenter environments. The reference implementation of Multipath TCP was developed
Transmission_Control_Protocol
Term in wireless communications
In wireless systems, fading may either be due to multipath propagation, referred to as multipath-induced fading, weather (particularly rain), or shadowing
Fading
Method of encoding digital data on multiple carrier frequencies
providing better orthogonality in transmission channels affected by multipath propagation. Each subcarrier (signal) is modulated with a conventional
Orthogonal frequency-division multiplexing
Orthogonal_frequency-division_multiplexing
Detail of the global positioning system
narrow correlator spacing, have been developed to mitigate multipath errors. For long delay multipath, the receiver itself can recognize the wayward signal
Error analysis for the Global Positioning System
Error_analysis_for_the_Global_Positioning_System
Watteyne, T.; Lanzisera, S.; Mehta, A.; Pister, K. S. J. (2010-05-01). "Mitigating Multipath Fading through Channel Hopping in Wireless Sensor Networks". 2010
Time_Slotted_Channel_Hopping
Form of signal modulation using time shifts
corresponding to the transmitted pulse. Multipath in Pulse Position Modulation systems can be easily mitigated by using the same techniques that are used
Pulse-position_modulation
Active antennas that are designed to resist radio jamming
it re-emerges from an obscured area and attempts to reacquire signals. Multipath: Reception of GNSS signals that are reflected or diffracted by nearby
Controlled reception pattern antenna
Controlled_reception_pattern_antenna
American GPS scientist (1966–2024)
at Ohio University, a seat he had held from 2004. His work on GPS multipath mitigation and Selective Availability is held in high regard in the scientific
Michael_Braasch
Technology discipline within engineering
low-latency, such as IoT and real-time analytics. Multipath transport protocols, such as Multipath TCP (MPTCP), optimize the use of multiple paths simultaneously
Computer_network_engineering
Satellite navigation technique used to enhance the precision of position data
satellite, and additional error sources such as non-mitigated ionospheric and tropospheric delays, multipath, satellite clock and ephemeris errors. RTK follows
Real-time kinematic positioning
Real-time_kinematic_positioning
Overview of and topical guide to radio science
links Measurements of fixed and mobile channels Propagation models Multipath mitigation Fixed terrestrial links: measurements and design strategies Surface/atmosphere
Outline_of_radio_science
Internet Protocol-based storage networking standard for linking data storage facilities
firmware running on that hardware, to implement iSCSI. A hardware initiator mitigates the overhead of iSCSI and TCP processing and Ethernet interrupts, and
ISCSI
Air interface for 4G and 5G broadband wireless communications
by mitigating the effects of multipath propagation. However, mitigation strategies have never been fully successful. In order to exploit multipath propagation
MIMO-OFDM
Accounting of signal gains and losses in communications
gases, rain, fog and clouds. Fading due to variations of the channel. Multipath losses. Antenna misalignment. Link budgets are important in Earth–Moon–Earth
Link_budget
Logical volume management system
mapper enough to ignore the individual paths that back a dm-multipath device if devices/multipath_component_detection=1 is set in lvm.conf. This prevents
Logical Volume Manager (Linux)
Logical_Volume_Manager_(Linux)
Redundancy method to improve communications reliability
receiving antenna. Antenna diversity is especially effective at mitigating these multipath situations. This is because multiple antennas offer a receiver
Antenna_diversity
Radio antenna on a vehicle for wireless keys
window glass. The metallic vehicle body causes significant multipath fading. To mitigate this, manufacturers use antenna diversity systems — typically
Automotive RKE receiver antenna
Automotive_RKE_receiver_antenna
Wi-Fi used for network connectivity
time of cyclic prefix protection from 0.8 μs to 3.2 μs, quadrupling the multipath distortion protection. Some commonly available 802.11a/g chipsets support
Long-range_Wi-Fi
European Space Agency satellites
pseudorange measurements and detailed analysis of the tracking noise and multipath performance of GIOVE-A ranging signals have been performed with the use
GIOVE
Type of radio propagation
groundwave propagation, tropospheric scatter, ionospheric propagation, multipath propagation or radio repeaters. NLOS links usually have lower and more
Non-line-of-sight_propagation
High bandwidth channel access method
sector-wide and sub-sector beam processing to improve link performance in multipath environments. Sub-sector beam processing can optimise changing user demographics
WSDMA
Reduction in the flexibility of network protocol design due to middleboxes
attaining global scale and becoming the primary communication network. Multipath TCP was the first extension to a core Internet protocol to deeply confront
Protocol_ossification
Egyptian-American professor and engineer
characteristics, improved motion parameter estimation, and exploitation of multipath reflections. His edited volume Through-the-Wall Radar Imaging (CRC Press
Moeness_Amin
Transmission of information via microwaves
interfere with each other at the receiving antenna, causing multipath fading. Multipath fades are usually deep only in a small spot and a narrow frequency
Microwave_transmission
used with coherent modulations such as phase-shift keying, mitigating the effects of multipath propagation and Doppler spreading. Adaptive equalizers are
Adaptive_equalizer
Replica of the transmitted image, offset in position
unwanted reflections. The technical term for this phenomenon is ringing. Multipath distortion, because radio frequency waves may take paths of different
Ghosting_(television)
Soviet air-to-air missile
inertial control system and linear radio correction, which would have mitigated multipath interference and allowed it to hit extremely low targets. No missiles
R-27_(air-to-air_missile)
Device that creates a larger computer network from two smaller networks
to simplify the creation and configuration of networks, while enabling multipath routing. It is a proposed replacement for Spanning Tree Protocol which
Network_bridge
segments due to multipath fading or high BER) with the use of timeouts and duplicate acknowledgments. WTCP then attempts to mitigate the problem by retransmitting
WTCP
creates virtual beams which mitigate multipath effects by focusing on the direct received signal and filtering out multipath bounces. Because the VRay can
Locata_Corporation
IEEE standard for Shortest Path Bridging
simplify the creation and configuration of Ethernet networks while enabling multipath routing. SPB is designed to replace the older Spanning Tree Protocols:
IEEE_802.1aq
applications 2023 Michael Braasch For contributions to GPS multipath error characterization and mitigation Karen Haigh For contributions to closed-loop control
List of fellows of IEEE Aerospace and Electronic Systems Society
List_of_fellows_of_IEEE_Aerospace_and_Electronic_Systems_Society
Form of single-frequency network
significantly mitigated these limitations; by 2004 technology existed to build receivers capable of detecting and compensating for static multipath interference
Distributed transmission system
Distributed_transmission_system
Computer network routing protocol
control plane in Shortest Path Bridging (SPB). SPB enables equal-cost multipath routing among Ethernet switches in a mesh topology: Ethernet frames are
IS-IS
Distributed file system protocol
Version 4.1 includes Session trunking mechanism (Also known as NFS Multipathing) and is available in some enterprise solutions as VMware ESXi. NFS version 4
Network_File_System
Protocol for communicating routing information on the Internet
requiring an additional 11 × 2 − 2 = 20 statements in this case. In a BGP multipath environment, the additional RR can also benefit the network by adding
Border_Gateway_Protocol
Behaviour of travelling radio waves
groundwave propagation, tropospheric scatter, ionospheric propagation, multipath propagation or radio repeaters. NLOS links usually have lower and more
Radio_propagation
framework to address challenges in doubly dispersive channels, where multipath propagation causes delay spreads and mobility induces Doppler shifts.
Delay_Doppler
Radio broadcast band
atmospheric effects, which occur more often at these frequencies. However, multipath distortion effects are less annoying than on the CCIR band. Stereo is
FM_broadcast_band
United States Space Force radar station in Greenland
specialized radome for Thule weather was installed by December 1963, and Thule multipath testing was completed by May 1964. In 1967 when the system cost totalled
Thule_Site_J
of image signals 1989 W. Rummler For contributions to the modeling of multipath fading and its effect on microwave digital radio 1989 Paul Shumate For
List of fellows of IEEE Communications Society
List_of_fellows_of_IEEE_Communications_Society
Wireless technique of sending and receiving messages through water
highly scattered, it can cause multipath propagation and signal degradation. The CPM's continuous phase feature mitigates these effects and maintains signal
Underwater acoustic communication
Underwater_acoustic_communication
Agency. Signal processing expertise for multipath analysis, RF interference detection and self-interference mitigation, signal strength measurement, and structural
UNSW School of Surveying and Geospatial Engineering
UNSW_School_of_Surveying_and_Geospatial_Engineering
American satellite-based radio navigation service
effects (ionospheric/tropospheric delays), ephemeris and clock data, multipath signals, and natural and artificial interference. Magnitude of residual
Global_Positioning_System
Guidance system for a landing aircraft
GBAS stations that mitigate the impact of satellite signal deformation, ionosphere differential error, ephemeris error, and multipath. The advent of the
Instrument_landing_system
Artificial satellite that relays radio signals
problems for extreme northerly latitudes, affecting connectivity and causing multipath interference (caused by signals reflecting off the ground and into the
Communications_satellite
coverage. Circular polarization is frequently employed to mitigate polarization mismatch and multipath effects. Modern vehicles often use roof-mounted “shark-fin”
Automotive_V2X_antennas
Proposed internet architecture
spoofing and tampering. NDN's use of multipath forwarding, together with the adaptive forwarding strategy module, mitigates prefix hijacking because routers
Named_data_networking
Combined bridging and routing protocol
encapsulated frame is preserved, including the original frame's VLAN tag. Multipathing of multi-destination frames through alternative distribution tree roots
TRILL
Area of research in signal processing
come from different sources. The multiuser –medium multiple access- and multipath -signal propagation over multiple scattering paths in wireless channels-
Array_processing
Radio navigation system
ionosphere, is a problem as multiple signals may arrive via different paths (multipath interference). The ionosphere's reaction to sunrise and sunset accounts
Loran-C
System spectral efficiency of communication system
receiving antenna. Antenna diversity is especially effective at mitigating these multipath propagation situations. This is because multiple antennas afford
CDMA_spectral_efficiency
Data communications modulation protocol
separate paths from transmitter to receiver exist, a condition known as multipath, they almost never have exactly the same length so they almost never exhibit
Multiple frequency-shift keying
Multiple_frequency-shift_keying
Wireless standard for intelligent building networks
circumvent household obstacles or radio dead spots that might occur in the multipath environment of a house. A message from node A to node C can be successfully
Z-Wave
signals (or waves) through various media, such as air, taking into account multipath propagation (due to reflection, refraction, diffraction and dispersion)
Stochastic geometry models of wireless networks
Stochastic_geometry_models_of_wireless_networks
Lattice network
TV pictures, phase ripple will give effects similar to ‘ghosting’ or multipath reception, where low level multiple images are superimposed on the main
Lattice_delay_network
Study of the propagation of sound in water
reduced by several orders of magnitude. The low speed of sound causes multipath propagation to stretch over time delay intervals of tens or hundreds of
Underwater_acoustics
networks. Up to this time, antenna diversity had only been used to mitigate multipath fading. However, digital mobile networks would not become common for
History_of_smart_antennas
Underwater component of maritime domain awareness
higher distortions due to multi path fading, is defined as shallow waters. Multipath propagation is governed by the depth of the sound axis that provides the
Underwater_domain_awareness
MULTIPATH MITIGATION
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Enjoy
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Song of God
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Contracted form of German Reginmund, REINMUND means "wise protector."
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warrior.
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Shy; Decent; Modest
MULTIPATH MITIGATION
MULTIPATH MITIGATION
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MULTIPATH MITIGATION
n.
Mitigation; abatement.
n.
The act of alleviating; a lightening of weight or severity; mitigation; relief.
a.
Admitting of mitigation; that may be mitigated.
n.
Mildness or mitigation of punishment; lenity.
a.
Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.
n.
The act of mitigating, or the state of being mitigated; abatement or diminution of anything painful, harsh, severe, afflictive, or calamitous; as, the mitigation of pain, grief, rigor, severity, punishment, or penalty.
n.
Mitigation; alleviation, as of a disease.
n.
An allaying; that which allays; mitigation.
n.
The act of axtenuating or the state of being extenuated; the act of making thin, slender, or lean, or of palliating; diminishing, or lessening; palliation, as of a crime; mitigation, as of punishment.