Beam-Scanning Reflectometer for Detecting Granulated Fruits

Kittiyanpunya, Chainarong; Leekul, Prapan; Phongcharoenpanich, Chuwong; Krairiksh, M.

doi:10.1109/jsen.2016.2646388

Cited by 14 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regarding low frequency wireless bands, a non-destructive method proposed in [21] took 10 to 1800 MHz signals to measure the dielectric properties and to detect the sugar content of three apple breeds. The Rician k-factor of 2.45 GHz signal response was used to estimate the granulated parts in tangerine [29]. Authors in [15] proposed to measure banana sugar content using ultrasound velocity, and similar to other approaches, such techniques require new dedicated hardware devices which are not readily available to consumers.…”

Section: Fruit Quality Assessment Using Electromagnetic Wavesmentioning

confidence: 99%

On the feasibility of estimating soluble sugar content using millimeter-wave

Yang

Pathak

Sha

et al. 2019

Proceedings of the International Conference on Internet of Things Design and Implementation

View full text Add to dashboard Cite

With the development of novel sensing techniques, continuous monitoring, data-driven inferences, precision irrigation control, and intelligent Internet-of-Things (IoT) systems, agriculture sector is witnessing a revolution. Specialized devices based on infrared and laser are developed to assist farmers in assessing the produce quality, especially its sugar content. However, such devices are expensive and not readily available to consumers. In this paper, we investigate the feasibility of using 60 GHz millimeter-wave (mmWave) signal as a ubiquitous and non-invasive way to estimate the Soluble Sugar Content (SSC) in fruits. With the rapid development in the mmWave technology, 60 GHz WiFi is likely to become pervasive in future mobile devices. Our study shows that when 60 GHz WiFi signals reflect from a fruit, the reflection can be used to infer the fruit's sugar content. We identify the underlying reasons of variations in reflection signals with varying SSC and study the impact of size, shape and density of fruits on reflections. We then develop statistical features based on received signal strength and amplitude, and use them to design regression-based estimation models. With an extensive evaluation with 300 fruit samples, we find that our proposed technique can estimate SSC in three different type of fruits with an average correlation coefficient of 85%. Our prediction errors are within the range of user's taste perception.

show abstract

Section: Fruit Quality Assessment Using Electromagnetic Wavesmentioning

confidence: 99%

On the feasibility of estimating soluble sugar content using millimeter-wave

Yang

Pathak

Sha

et al. 2019

Proceedings of the International Conference on Internet of Things Design and Implementation

View full text Add to dashboard Cite

show abstract

“…In the past years, new types of LWAs have been proposed with novel design techniques, methodologies, and new analysis. Developments of broadside radiating LWAs, CRLH structures, dual CRLH structures, and beam scanning application for sensor networks have brought LWAs to much lime light …”

Section: Introductionmentioning

confidence: 99%

“…Developments of broadside radiating LWAs, CRLH structures, dual CRLH structures, and beam scanning application for sensor networks have brought LWAs to much lime light. [12][13][14][15][16][17] The zigzag LWA structure is proposed in this article with a coupled mode analysis that resulted in dual scanning, both forward and backward. This concept explains the dual scanning in the forward direction as well as backward direction both in the right-hand quadrant.…”

mentioning

confidence: 99%

Model analysis of coupled‐mode leaky‐wave antenna for forward and backward frequency scanning

Kandwal

Das

Tang

et al. 2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

This article proposes model analysis of a microstrip leaky‐wave antenna for forward and backward scanning. Mode coupling and dual scan concept is introduced in this article with an inverted V‐section leaky‐wave antenna. The proposed design concept has been implemented on microstrip planar structure. An inverted V‐section has been therefore implemented which resulted in frequency scanning in forward and backward directions in the right‐hand (RH) region. The phenomenon has been observed within same frequency bandwidth of leaky‐wave region which is normally difficult to see in conventional leaky‐wave antennas. The article has also provided a circuit model analysis and design implementation explained by mode coupling theory. The proposed dual scanning leaky‐wave antenna (DSLWA) design is providing a wide impedance bandwidth in the Ku‐band and K‐band with high gain, reduced side lobe levels and high radiation efficiency.

show abstract