{"title":"设计闪电惠斯勒频率坐标检测应用","authors":"P. N. M. Weking, I. P. A. Bayupati, I. N. Piarsa","doi":"10.24843/LKJITI.2016.v07.i03.p07","DOIUrl":null,"url":null,"abstract":"atmosfer satunya adalah Lightning Whistler. Lightning Whistler merupakan bentuk elektromagnetik yang terdengar dalam bentuk suara seperti siulan sesaat setelah kilat berlangsung pada lapisan magnetosfer dan ionosfer. Gelombang siulan yang merambat frekuensi radio disebut whistler wave. Aplikasi Pendeteksi Titik Koordinat Frekuensi Lightning Whistler yang dikembangkan pada penelitian ini bertujuan untuk mendeteksi dan memperoleh titik koordinat whistler wave. Deteksi Lightning Whistler dilakukan melalui penerapan metode Short Time Fourier Transform (STFT), image processing, dan morphology image. Metode STFT bertujuan untuk melakukan konversi data audio menjadi citra spektogram. Image processing diterapkan pada citra spektogram untuk menghilangkan noise. Proses morphology image diterapkan pada hasil image processing bertujuan untuk mempertebal sinyal gelombang whistler sehingga mempermudah melakukan pendeteksian titik koordinat yang dilakukan pada proses akhir. Aplikasi ini mampu mendeteksi titik koordinat dari sinyal whistler wave berupa informasi lokasi titik koordinat sinyal yang dimunculkan dan jumlah sinyal yang terdeteksi berdasarkan periode dan waktu. Abstract Unusual activities of earth can be seen by human on a certain time caused by some earth activities change. One of them is the phenomena on atmosphere namely Lightning Whistler. Lightning Whistler is an electromagnetic wave that happens after a lighting on the magnetosphere and ionosphere, where a sound like a whistle is produced. This wave that traverse on radio frequency is called as whistler wave. This research proposed an application for detecting the frequency coordinate of a lightning whistler. The proposed application used STFT, image processing, and morphology image. STFT method is used to convert audio data into spectrogram image data. Afterwards, spectrogram image is processed by using image processing method to reduce noise. Finally, morphology image method is implemented to thicken the whistler wave signal to simplify the detection of coordinate. The proposed application can detect coordinate of a whistler wave signal, in the form of coordinate location, and the number of detected signal, based on time and period.","PeriodicalId":31196,"journal":{"name":"Lontar Komputer","volume":"1 1","pages":"193"},"PeriodicalIF":0.0000,"publicationDate":"2016-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.24843/LKJITI.2016.v07.i03.p07","citationCount":"0","resultStr":"{\"title\":\"Rancang Bangun Aplikasi Pendeteksi Titik Koordinat Frekuensi Lightning Whistler\",\"authors\":\"P. N. M. Weking, I. P. A. Bayupati, I. N. Piarsa\",\"doi\":\"10.24843/LKJITI.2016.v07.i03.p07\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"atmosfer satunya adalah Lightning Whistler. Lightning Whistler merupakan bentuk elektromagnetik yang terdengar dalam bentuk suara seperti siulan sesaat setelah kilat berlangsung pada lapisan magnetosfer dan ionosfer. Gelombang siulan yang merambat frekuensi radio disebut whistler wave. Aplikasi Pendeteksi Titik Koordinat Frekuensi Lightning Whistler yang dikembangkan pada penelitian ini bertujuan untuk mendeteksi dan memperoleh titik koordinat whistler wave. Deteksi Lightning Whistler dilakukan melalui penerapan metode Short Time Fourier Transform (STFT), image processing, dan morphology image. Metode STFT bertujuan untuk melakukan konversi data audio menjadi citra spektogram. Image processing diterapkan pada citra spektogram untuk menghilangkan noise. Proses morphology image diterapkan pada hasil image processing bertujuan untuk mempertebal sinyal gelombang whistler sehingga mempermudah melakukan pendeteksian titik koordinat yang dilakukan pada proses akhir. Aplikasi ini mampu mendeteksi titik koordinat dari sinyal whistler wave berupa informasi lokasi titik koordinat sinyal yang dimunculkan dan jumlah sinyal yang terdeteksi berdasarkan periode dan waktu. Abstract Unusual activities of earth can be seen by human on a certain time caused by some earth activities change. One of them is the phenomena on atmosphere namely Lightning Whistler. Lightning Whistler is an electromagnetic wave that happens after a lighting on the magnetosphere and ionosphere, where a sound like a whistle is produced. This wave that traverse on radio frequency is called as whistler wave. This research proposed an application for detecting the frequency coordinate of a lightning whistler. The proposed application used STFT, image processing, and morphology image. STFT method is used to convert audio data into spectrogram image data. Afterwards, spectrogram image is processed by using image processing method to reduce noise. Finally, morphology image method is implemented to thicken the whistler wave signal to simplify the detection of coordinate. The proposed application can detect coordinate of a whistler wave signal, in the form of coordinate location, and the number of detected signal, based on time and period.\",\"PeriodicalId\":31196,\"journal\":{\"name\":\"Lontar Komputer\",\"volume\":\"1 1\",\"pages\":\"193\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-12-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.24843/LKJITI.2016.v07.i03.p07\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Lontar Komputer\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24843/LKJITI.2016.v07.i03.p07\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lontar Komputer","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24843/LKJITI.2016.v07.i03.p07","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Rancang Bangun Aplikasi Pendeteksi Titik Koordinat Frekuensi Lightning Whistler
atmosfer satunya adalah Lightning Whistler. Lightning Whistler merupakan bentuk elektromagnetik yang terdengar dalam bentuk suara seperti siulan sesaat setelah kilat berlangsung pada lapisan magnetosfer dan ionosfer. Gelombang siulan yang merambat frekuensi radio disebut whistler wave. Aplikasi Pendeteksi Titik Koordinat Frekuensi Lightning Whistler yang dikembangkan pada penelitian ini bertujuan untuk mendeteksi dan memperoleh titik koordinat whistler wave. Deteksi Lightning Whistler dilakukan melalui penerapan metode Short Time Fourier Transform (STFT), image processing, dan morphology image. Metode STFT bertujuan untuk melakukan konversi data audio menjadi citra spektogram. Image processing diterapkan pada citra spektogram untuk menghilangkan noise. Proses morphology image diterapkan pada hasil image processing bertujuan untuk mempertebal sinyal gelombang whistler sehingga mempermudah melakukan pendeteksian titik koordinat yang dilakukan pada proses akhir. Aplikasi ini mampu mendeteksi titik koordinat dari sinyal whistler wave berupa informasi lokasi titik koordinat sinyal yang dimunculkan dan jumlah sinyal yang terdeteksi berdasarkan periode dan waktu. Abstract Unusual activities of earth can be seen by human on a certain time caused by some earth activities change. One of them is the phenomena on atmosphere namely Lightning Whistler. Lightning Whistler is an electromagnetic wave that happens after a lighting on the magnetosphere and ionosphere, where a sound like a whistle is produced. This wave that traverse on radio frequency is called as whistler wave. This research proposed an application for detecting the frequency coordinate of a lightning whistler. The proposed application used STFT, image processing, and morphology image. STFT method is used to convert audio data into spectrogram image data. Afterwards, spectrogram image is processed by using image processing method to reduce noise. Finally, morphology image method is implemented to thicken the whistler wave signal to simplify the detection of coordinate. The proposed application can detect coordinate of a whistler wave signal, in the form of coordinate location, and the number of detected signal, based on time and period.