Sensors, Vol. 19, Pages 4192: Feasibility Analysis of LTE-Based UAS Navigation in Deep Urban Areas and DSRC Augmentation

Sensors, Vol. 19, Pages 4192: Feasibility Analysis of LTE-Based UAS Navigation in Deep Urban Areas and DSRC Augmentation Sensors doi: 10.3390/s19194192 Authors: Euiho Kim Yujin Shin The current autonomous navigation of unmanned aircraft systems (UAS) heavily depends on Global Navigation Satellite Systems (GNSS). However, in challenging environments, such as deep urban areas, GNSS signals can be easily interrupted, so that UAS may lose navigation capability at any instant. For urban positioning and navigation, Long Term Evolution (LTE) has been considered a promising signal of opportunity due to its dense network in urban areas, and there has recently been great advancement in LTE positioning technology. However, the current LTE positioning accuracy is found to be insufficient for safe UAS navigation in deep urban areas. This paper evaluates the positioning performance of the current network of LTE base stations in a selected deep urban area and investigates the effectiveness of LTE augmentations using dedicated short range communication (DSRC) transceivers through the optimization of the ground LTE/DSRC network and cooperative positioning among UAS. The analysis results based on simulation using an urban canyon model and signal line of sight propagations show that the addition of four or five DSRC transceivers to the existing LTE base station network could provide better than 4–6 m horizontal positioning accuracy (95%) in the selected urban canyon at a pos...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research

Related Links:

Conclusion There are many ways to make your life more positive. However, knowledge alone is not power. True power is the ability to implement what you’ve learned. Are you ready to make a change in your life? If you want to take your life to the next level and become the best version of yourself, CLICK HERE. Website: www.furudo.com You've read 6 Ways To Live A More Positive Life, originally posted on Pick the Brain | Motivation and Self Improvement. If you've enjoyed this, please visit our site for more inspirational articles.
Source: PickTheBrain | Motivation and Self Improvement - Category: Consumer Health News Authors: Tags: featured happiness psychology self improvement motivation positivity Source Type: blogs
Twenty years ago this fall, the Institute of Medicine—an U.S.-based independent, nongovernmental organization widely regarded as an authority at the intersection of medicine and society—released a report titled “To Err Is Human.” It announced that up to 98,000 Americans were dying each year from medical errors. Official and popular reaction was swift. Congress mandated the monitoring of progress in efforts to prevent patient harm, and the health care industry set grand goals, such as reducing medical errors by 50% within five years. News outlets reported on the proceedings closely. A remedy for a lo...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Healthcare public health Source Type: news
cio The ability to locate a target around a corner is crucial in situations where it is impractical or unsafe to physically move around the obstruction. However, current techniques are limited to long acquisition times as they rely on single-photon counting for precise arrival time measurements. Here, we demonstrate a single-shot non-line-of-sight range-finding method operating at 10 Hz and capable of detecting a moving human target up to distances of 3 m around a corner. Due to the potential data acquisition speeds, this technique will find applications in search and rescue and autonomous vehicles.
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
qui P Abstract Primary open-angle glaucoma is a progressive disease affecting nearly 60 million people worldwide which, if left untreated, can lead to optic nerve head damage and complete loss of sight. Current interventions include: pharmaceutical drops, laser surgery, shunts, and bleb; however, these methods provide insufficient long-term efficacy in intraocular pressure management. We developed a semi-permanent, implantable transcorneal duct as a new aid in the treatment of this disease. The duct, composed of an intracorneal stabilizing washer and hollow screw, creates an interface between the anterior chamber ...
Source: Biomedical Microdevices - Category: Biomedical Engineering Authors: Tags: Biomed Microdevices Source Type: research
by Lizzy Miles (@LizzyMiles_MSW)No one should ever be “put” in a nursing home. You might agree with this statement because you don’t like nursing homes, but that is not what I’m saying. The word “put” is offensive when you are describing a person, unless you are talking about putting a 3 year old in the time out corner because he colored on the walls.I would like to make the argument that no adult wants to be ‘put’ anywhere. You put dishes away, you do not put people away. When we are facing a situation in which the care needs exceed the family member’s ability, there a...
Source: Pallimed: A Hospice and Palliative Medicine Blog - Category: Palliative Care Tags: caregiver caregiving communication geriatrics miles nursing home reframing social work social worker Source Type: blogs
Earlier this year, Medgadget reported on the FDA’s clearance of the SEM Scanner, a device created by Los Angeles-based Bruin Biometrics (BBI). The SEM Scanner is a wireless, handheld device that detects changes in sub-epidermal moisture as an i...
Source: Medgadget - Category: Medical Devices Authors: Tags: Critical Care Exclusive Medicine Plastic Surgery Vascular Surgery Source Type: blogs
aacute;lez In the last few years, there has been a huge interest in the Internet of Things (hereinafter IoT) field. Among the large number of IoT technologies, the low-power wide-area network (hereinafter LPWAN) has emerged providing low power, low data-rate communication over long distances, enabling battery-operated devices to operate for long time periods. This paper introduces an application of long-range (hereinafter LoRa) technology, one of the most popular LPWANs, to volcanic surveillance. The first low-power and low-cost wireless network based on LoRa to monitor the soil temperature in thermal anomaly zones in ...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
Marital conflicts are demanding, difficult and disturbing. Especially true when each party defines the problem differently. Sometimes it seems like each party is reading from a different script. One party is biased, while the other has the ability to see things “as they really are.” One partner is perfectly sane, while the other is, well let’s just say “the other has problems.”  So, who’s right? Who’s wrong? As is true for many things in life, it depends. Let’s first focus on how women often view the problem: “They married and lived happily ever after.” ...
Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: Communication Marriage and Divorce Relationships arguments Blame Conflict Resolution Couples Dating Defensiveness Forgiveness Source Type: blogs
Diego ZuluagaOn October 21, I had the pleasure to give the research keynote address at the annual conference of the Financial Services Centers of America (FiSCA) in Miami. The below is a transcript of my speech, in which I critiqued some policymakers' attempts to promote financial inclusion by restricting consumer choice and giving the government a larger role in credit allocation. In light of historical experience in the U.S. and elsewhere, I offered market competition as a more effective policy to ensure all Americans can achieve financial security.*****The legislator, who knows nothing, nor can know any thing, of any on...
Source: Cato-at-liberty - Category: American Health Authors: Source Type: blogs
By Emma Young In 2017, in my first ever post for the Digest, I wrote about a paper that challenged the popular idea that “now” — also known as the “subjective present” — is three seconds long. It’s just not possible to define the present so strictly, this review concluded. Instead of trying to explore what constitutes “right now”, another way to get at our conceptions of time is to ask: when does the present end and the future begin? And precisely this question has now been explored in a series of studies by Hal Hershfield at UCLA and Sam Maglio at the University o...
Source: BPS RESEARCH DIGEST - Category: Psychiatry & Psychology Authors: Tags: Decision making Perception Time Source Type: blogs
More News: Biotechnology | Environmental Health | Eyes | Hypermetropia (long sighted)