Tao jian ping (93 risultati)

Condizione: New.

Condizione: New.

Taschenbuch. Condizione: Neu. Neuware - The most bandwidth-efficient communication methods are imperative to cope with the congested frequency bands. Pulse shaping methods have excellent effects on narrowing bandwidth and increasing band utilization. The position of the baseband filters for the pulse shaping is crucial. Post-modulation pulse shaping (a low pass filter is located after the modulator) can change signals from constant envelope to non-constant envelope, and non-constant envelope signals through non-linear device (a SSPA or TWT) can further spread the power spectra. Pre-modulation pulse shaping (a filter is located before the modulator) will have constant envelope. These two pulse shaping methods have different effects on narrowing the bandwidth and producing bit errors. This report studied the effect of various pre-modulation pulse shaping filters with respect to bandwidth, spectral spikes and bit error rate. A pre-modulation pulse shaped 8-ary Phase Shift Keying (8PSK) modulation was used throughout the simulations. In addition to traditional pulse shaping filters, such as Bessel, Butterworth and Square Root Raised Cosine (SRRC), other kinds of filters or pulse waveforms were also studied in the pre-modulation pulse shaping method. Simulations were conducted by using the Signal Processing Worksystem (SPW) software package on HP workstations which simulated the power spectral density of pulse shaped 8-PSK signals, end to end system performance and bit error rates (BERS) as a function of Eb/No using pulse shaping in an AWGN channel. These results are compared with the post-modulation pulse shaped 8-PSK results. The simulations indicate traditional pulse shaping filters used in pre-modulation pulse shaping may produce narrower bandwidth, but with worse BER than those in post-modulation pulse shaping. Theory and simulations show pre- modulation pulse shaping could also produce discrete line power spectra (spikes) at regular frequency intervals.…

paperback. Condizione: New. Language:Chinese.Paperback Pages Number: 280 modern commercial bank corporate culture from a combination of theory and practice point of view. customer-oriented. to meet customers' financial needs for the purpose of the development of the marketing strategy of commercial banks. the expansion of marketing channels. products and service pricing. distribution and promotion carried out and the construction of corporate culture and image building a series of questions. made a systematic theoretica.…

Soft cover. Condizione: New. Language:Chinese.Author:XIE BING ZHENG YUAN BAO KUI ZHOU TAO SHI JIAN PING.Binding:Soft cover.Publisher:Southeast University Press Pub. Date :2007-08-01.

PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Buch. Condizione: Neu. Neuware - The most bandwidth-efficient communication methods are imperative to cope with the congested frequency bands. Pulse shaping methods have excellent effects on narrowing bandwidth and increasing band utilization. The position of the baseband filters for the pulse shaping is crucial. Post-modulation pulse shaping (a low pass filter is located after the modulator) can change signals from constant envelope to non-constant envelope, and non-constant envelope signals through non-linear device (a SSPA or TWT) can further spread the power spectra. Pre-modulation pulse shaping (a filter is located before the modulator) will have constant envelope. These two pulse shaping methods have different effects on narrowing the bandwidth and producing bit errors. This report studied the effect of various pre-modulation pulse shaping filters with respect to bandwidth, spectral spikes and bit error rate. A pre-modulation pulse shaped 8-ary Phase Shift Keying (8PSK) modulation was used throughout the simulations. In addition to traditional pulse shaping filters, such as Bessel, Butterworth and Square Root Raised Cosine (SRRC), other kinds of filters or pulse waveforms were also studied in the pre-modulation pulse shaping method. Simulations were conducted by using the Signal Processing Worksystem (SPW) software package on HP workstations which simulated the power spectral density of pulse shaped 8-PSK signals, end to end system performance and bit error rates (BERS) as a function of Eb/No using pulse shaping in an AWGN channel. These results are compared with the post-modulation pulse shaped 8-PSK results. The simulations indicate traditional pulse shaping filters used in pre-modulation pulse shaping may produce narrower bandwidth, but with worse BER than those in post-modulation pulse shaping. Theory and simulations show pre- modulation pulse shaping could also produce discrete line power spectra (spikes) at regular frequency intervals.…

paperback. Condizione: New. Language:Chinese.Hot Issues of legal supervision - procuratorial theory - ( three . Above ) -6.

paperback. Condizione: New. Language:Chinese.2012 - Criminal Difficult Case Studies - Attorney Selected Cases -1.

PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

paperback. Condizione: New. Language:Chinese.Paperback. Publisher: Posts Telecom.

Soft cover. Condizione: New. Language:Chinese.Author:DAI JI TAO YU MIN GUO KAO SHI YUAN DE JIAN ZHU DA YUAN SHUAI SHOU LING YU PING DING CHEN JIONG MING PAN BIAN.Binding.Publisher:Xinhua Publishing House.

paperback. Condizione: New. Language:Chinese.Pages Number: 226 Publisher: Liaoning Education Press Pub. Date :2008-08. It is said that a high school student s spiritual growth. and ultimately. self-reading. although today s education is still to point to the examination of trends. but we can not deny our reading of the role and significance now. faced with the problem. how to get from a utilitarian should read the humanities. emotion. spirit and ability to think independently. ie . how to complete the examination in rea.…

paperback. Condizione: New. Paperback.Pub Date:2024-01 Pages:251 Language:Chinese Publisher:Social Sciences Academic Press From Modernization to Chinese-Style Modernization systematically combs the development process of ideological collision. cultural conflict and integration of the Chinese people in the face of the western learning and eastward exploration of the modernization path since modern times with a broad historical and long-term academic perspective. and finally found the truth of Marxism. and with the scient.…

paperback. Condizione: New. Paperback. Pub Date :2000-03 Pages: 307 Publisher: distant Press sheets: 10.

Soft cover. Condizione: New. Language:Chinese.Author:WANG JIAN PING TAO ZHI HONG.Binding:Soft cover.Publisher:Guangdong Tourism Press Pub. Date :2006-01-01.

Soft cover. Condizione: New. Language:Chinese.Author:FU LI PING CENG GUO TAO JIAN LIANG.Binding:Soft cover.Publisher:Haitian Press Pub. Date: 2002 - 08-01.

paperback. Condizione: New. Paperback.Pub Date:2020-12-01 Pages:749 Language:Chinese Publisher:China Procuratorate Press The 29th Academic Symposium of the Chinese Society of Criminology will be held in Shanghai in December 2020. This annual meeting is hosted by the Chinese Society of Criminology and jointly organized by the Shanghai Municipal People's Procuratorate and East China University of Political Science and Law. The communiqu of the Fifth Plenary Session of the 19th Central Committee of the Communist Party of C.…

paperback. Condizione: Good. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Comics Oriental Building 11Four Satisfaction guaranteed,or money back.

paperback. Condizione: New. Paperback.Pub Date:2021-01-01 Pages:255 Language:Chinese Publisher:Yellow River Water Conservancy Publishing House This book systematically introduces the basic theories of photogrammetry and the basic methods of digital photogrammetry; the composition and parts of the UAV photogrammetry system The role and characteristics of UAV; types and characteristics of UAV aerial survey data. mission planning. operation process and quality requirements of UAV data collection; UAV photogrammetry data pr.…

paperback. Condizione: New. Language:Chinese.Paperback. Publisher: Fudan University Press. book under the higher economic class of professional calculus syllabus and Kaoyan written in outline. Content Pack.

paperback. Condizione: New. Pages Number: 226 Publisher: Huazhong University Press Pub. Date :2006-10. The first half of the book introduces the basic concepts of psychological counseling & service mode & the general process & the basic principles of counseling and psychological tests commonly used in the diagnosis approach & focusing on counseling to clarify the talks & such as listening & asking & questioning & repetition and summary of the repeat & surface quality & to clarify the content response & emotional respons.…

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2025-12 Pages: 160 Publisher: People's Medical Publishing House.

paperback. Condizione: Good. 92 China International Dream of the Red Chamber seminar papers: the traditional cultural heritage and breakthrough (16 letterpress printing 25 full).

paperback. Condizione: Good. In the health of older persons scientific and practical guide [1 India.

paperback. Condizione: New. Paperback. Pub Date: 2021-05-01 Pages: 99 Language: Chinese Publisher: Southwest Normal University Press. Biological Practice and Creative Life has three main units. which include not only biological research activities. but also vegetation dyeing. colorful roses. Insect amber and other creative production activities. as well as field visits and surveys using nearby resources.?The practice activities are in various forms. and the content is close to life and rich and interesting.?In the proce.…

paperback. Condizione: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Pages: 146 Publisher: Huazhong University Press national secondary vocational education nursing profession double certificates training second five planning materials : Medical Chemistry Basics press enough for the degree . practical for the first principles embodied in the preparation of the ideological work . science. nature and applicability. The book has 12 chapters five experiments . including introduction . halogen . material structure and the periodic law . solution. electro.Four Satisfaction guaranteed,or money back.…

paperback. Condizione: New. Paperback. Pub Date: 2006 Pages: 455 Publisher: Tsinghua University Press book Deep and step-by-step introduction to Autodesk's latest computer-aided design software - AutoCAD 2007 Chinese version of the basic functions and use of skills. The book is divided into 16 chapters. describing the basic functionality and interface of AutoCAD 2007. the use of the basic operation of the drawing. line. color and layer aids. graphics display control. two-dimensional graphics drawing and editing. precise.…

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paperback. Condizione: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Pub Date :2012-09-01 Pages: 480 Publisher: Higher Education Press title: national vocational education planning materials: University mathematical Original: 46.80 yuan Author: Guo Jianping. Jia Jintao Press: Higher Education Publishing Society Publication Date :2012-09-01ISBN: 9787040348538 Words: Page: 480 Edition: 1 Binding: Folio: 16 Weight: Editor's Summary national vocational education planning materials: Mathematics according to the Ministry of Education developed by the Advanced Mathematics Teaching in Higher Vocational Education Basic requirements. in combination with reference to the development trend of the domestic like textbook written on the basis of conscientiously sum up the experience of mathematics teaching reform in higher vocational colleges. National vocational education planning materials: Mathematics Content is divided into 16 seven chapters. including the limit of the function and connectivity. application of derivative and differential derivative functions of one variable calculus. the definite integral. spatial resolution Introduction to Geometry. multi-function differential calculus. multi-function calculus based on ordinary differential equations. infinite series preliminary initial probability theory. mathematical statistics preliminary determinant. matrix and linear equations. linear algebra application example. the mathematical experiment. Book with nine Appendix: used in the elementary mathematical formula. several common curve (a0). Points Table. the Poisson distribution table. the standard normal distribution table. X2 distribution table. t-distribution tables. F distribution tables. probability Prior knowledge on the basis of theory and mathematical statistics. National vocational education planning materials: Mathematics Content narrative easy to understand. easy to self-study. as a professional teaching in higher professional education. vocational education. education in Engineering. and also can be used as a reference book of engineering and technical personnel. Directory of introduction Digest preambleFour Satisfaction guaranteed,or money back. …