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"The main aim of this book is to introduce different signal processing models which have been used in analyzing periodic data, and different statistical and computational issues. This book discuss in detail the sinusoidal frequency model which has been used extensively in analyzing periodic data occuring in various fields. This book have tried to introduce different associated models and higher dimensional statistical signal processing models which have been further discussed in the literature. Different real data sets have been analyzed to illustrate how different models can be used in practice. Several open problems have been indicated for future research."

"Kelancaran komunikasi melalui telepon selular merupakan kewajiban yang harus dipenuhi oleh operator komunikasi di Kota Bukittinggi yang merupakan pusat tujuan wisata dan kota terbesar kedua di Propinsi Sumatera Barat. Tersusunnya model spasial kualitas penerimaan layanan sinyal telekomunikasi (PLST) merupakan tujuan akhir dari penelitian ini melalui pengukuran kuat sinyal di 69 lokasi yang dilanjutkan dengan analisis keruangan secara kuantitatif antara kuat sinyal dengan jarak dari BTS, ketinggian tempat, ketingian lokasi BTS dan arah hadapan lereng, dijadikan landasan untuk menyusun model spasial PLST di Kota Bukittinggi. Hasil penelitian menunjukkan pola spasial PLST operator merah mempunyai kualitas yang sangat baik hampir diseluruh daerah penelitian, sedangkan sinyal layanan operator hitam cenderung mengelompok dibagian selatan, makin jauh dari lokasi BTS operator merah atau operator hitam kualitas PLST semakin buruk. Lereng yang menghadap BTS operator merah dan operator hitam menunjukkan kualitas PLST yang lebih baik, makin tinggi lokasi BTS, semakin buruk kualitas PLST operator hitam. Model spasial kualitas PLST di Kota Bukittinggi terlihat bahwa daerah yang dekat BTS dengan wilayah yang datar atau dengan lereng yang menghadap BTS.

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Smooth communication through mobile phones is an obligation that must be met by communication operators in the Bukittinggi City is the center of a tourist destination and second largest city in West Sumatra Province. The formulated models of Spatial Signal Reception Quality Telecommunications Services (SSRQTS) is the ultimate goal of this research through a strong measurement signal in 69 locations, followed by a quantitative spatial analysis of signal strength with distance from the BTS, altitude, location of base stations and the direction of the level before the slope, provides a basis to develop spatial models of SSRQTS in the Bukittinggi City.

The results show the spatial patterns of SSRQTS of red operators have a very good quality in nearly all the research areas, while the signal carrier services tend to cluster in the southern black, farther from the BTS site operator or service quality black or red SSRQTS worse. Slopes facing the BTS service shows the red and black operators SSRQTS better quality, the higher the location of the BTS, the worse the quality of the service SSRQTS black. Model of SSRQTS in the Bukittinggi City is seen that the area near the BTS with the area of a flat or a slope overlooking the BTS. "

"Digital signal processing, Second Edition enables electrical engineers and technicians in the fields of biomedical, computer, and electronics engineering to master the essential fundamentals of DSP principles and practice. Many instructive worked examples are used to illustrate the material, and the use of mathematics is minimized for easier grasp of concepts. As such, this title is also useful to undergraduates in electrical engineering, and as a reference for science students and practicing engineers.The book goes beyond DSP theory, to show implementation of algorithms in hardware and software. Additional topics covered include adaptive filtering with noise reduction and echo cancellations, speech compression, signal sampling, digital filter realizations, filter design, multimedia applications, over-sampling, etc. More advanced topics are also covered, such as adaptive filters, speech compression such as PCM, u-law, ADPCM, and multi-rate DSP and over-sampling ADC.New to this edition :- MATLAB projects dealing with practical applications added throughout the book- New chapter (chapter 13) covering sub-band coding and wavelet transforms, methods that have become popular in the DSP field- New applications included in many chapters, including applications of DFT to seismic signals, electrocardiography data, and vibration signals- All real-time C programs revised for the TMS320C6713 DSK"

"Pada wilayah perkotaan seperti Jakarta Timur yang didalamnya banyak terdapat pusat pemerintahan, perdagangan, pendidikan dan lain lain, perangkat telekomunikasi banyak dimanfaatkan dalam hal publikasi, transaksi atau pelayanan, administrasi, promosi, sedangkan kebutuhan internet bagi individu banyak dimanfaatkan dalam hal komunikasi, sosialisasi, mencari informasi hingga hiburan. Saat ini game online tidak hanya dimainkan menggunakan komputer atau PC, melainkan dengan hadirnya telepon pintar dengan teknologi canggih yang dapat terhubung satu sama lain dengan jaringan internet. Dalam mobile gaming membutuhkan latensi yang baik agar dapat berjalan lancar. Kebutuhan akan perangkat telekomunikasi tersebut menggunakan gelombang frekuensi untuk perambatan sinyal, namun biasanya perambatan sinyal dapat terganggu karena banyak faktor yang mempengaruhi contohnya jarak dari BTS, kerapatan bangunan dan bentuk medan. Penelitian ini bertujuan mengetahui hubungan antara kualitas sinyal, kecepatan internet dan latensi terhadap jarak dari BTS, kerapatan bangunan dan bentuk medan. Penggunaan metode analisis keruangan secara deskriptif menghasilkan informasi keruangan kualitas sinyal di Jakarta Timur dan metode analisis statistik menghasilkan informasi nilai hubungan antara variabel dependen dan independen. Hasil penelitian menunjukkan bahwa kualitas sinyal, kecepatan internet dan latensi yang baik terdapat pada wilayah yang dekat dengan BTS dan memiliki tingkat kerapatan bangunan yang rendah.

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In urban areas such as East Jakarta where there are many centers of government, trade, education and others, telecommunication device widely used on publication, transactions or services, administration, promotion, while the internet needs of individuals are widely used in terms of communication, socialization, seeking information and entertainment. At this time, online games are not only played using a computer or PC, but the presence of a smartphone with advanced technology that can be connected to each other with the internet network. In mobile gaming requires good latency to run smoothly. The need for telecommunications system uses frequency waves for signal propagation, but usually signal propagation can be interrupted due to many factors that affect for example distance from BTS, building density and terrain shape. This study purposed to determine the relationship between signal quality, internet speed and latency to the distance from BTS, building density and shape of the terrain. Descriptive spatial analysis method produces spatial information of signal quality in East Jakarta and statistical analysis method produces information about the relationship between the dependent and independent variables. The results showed that signal quality, internet speed and good latency were found in areas where near from BTS and had a low level of building density."