通信原理 周炯槃,庞沁华,续大我,吴伟陵,杨鸿文 著 北京邮电大学出版社【正版书籍】

通信原理 周炯槃,庞沁华,续大我,吴伟陵,杨鸿文 著 北京邮电大学出版社【正版书籍】

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通信原理 周炯槃,庞沁华,续大我,吴伟陵,杨鸿文 著 北京邮电大学出版社【正版书籍】

通信原理 周炯槃,庞沁华,续大我,吴伟陵,杨鸿文 著 北京邮电大学出版社【正版书籍】

$32.64

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编辑推荐
《通信原理(第4版)》系统、深入地介绍了通信系统和通信网的基本原理与基本分析方法,是通信及信息专业的专业基础课教材。全书共3章,内容包括通信系统及通信网的基本概念、确定信号分析、随机过程、模拟通信系统、数字信号的基带传输、数字信号的频带传输、信源和信源编码、信道、信道编码、扩频通信、正交频分复用多载波调制技术、通信系统的优化、通信网的基本知识。《通信原理(第4版)》概念清楚,取材新颖,书中列举了大量例题,还附有习题及部分习题答案。《通信原理(第4版)》可作为高等学校通信工程、电子工程和其他相近专业本科生的教材,也可供通信工程技术人员和科研人员作为参考书。 
目  录
第章绪论
.引言
.2通信发展简史和展望
.3通信系统和通信网的构成
.3.概述
.3.2信源、信宿和信号
.3.3信源编译码设备
.3.4信道及信道编译码设备
.4本书的总体结构

第2章确定信号分析
2.傅里叶级数与傅里叶变换
2.2能量谱密度与功率谱密度
2.3线性时不变系统
商品详情

 基本详情信息

 书名:通信原理(第4版)

 ISBN:9787563544271

 定价:56.00

 作者:周炯槃、庞沁华、续大我、吴伟陵、杨鸿文

 出版社:北京邮电大学出版社有限公司

 出版时间:2015-08

 其他信息

 纸张:胶版纸

 页数:419

 尺寸:16开

 版次:4

 正文语种:简体中文...

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Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

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If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

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Return Policy

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  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

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Product Conditions for Return

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Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

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EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

cy当当栏目.jpg

编辑推荐
《通信原理(第4版)》系统、深入地介绍了通信系统和通信网的基本原理与基本分析方法,是通信及信息专业的专业基础课教材。全书共3章,内容包括通信系统及通信网的基本概念、确定信号分析、随机过程、模拟通信系统、数字信号的基带传输、数字信号的频带传输、信源和信源编码、信道、信道编码、扩频通信、正交频分复用多载波调制技术、通信系统的优化、通信网的基本知识。《通信原理(第4版)》概念清楚,取材新颖,书中列举了大量例题,还附有习题及部分习题答案。《通信原理(第4版)》可作为高等学校通信工程、电子工程和其他相近专业本科生的教材,也可供通信工程技术人员和科研人员作为参考书。 
目  录
第章绪论
.引言
.2通信发展简史和展望
.3通信系统和通信网的构成
.3.概述
.3.2信源、信宿和信号
.3.3信源编译码设备
.3.4信道及信道编译码设备
.4本书的总体结构

第2章确定信号分析
2.傅里叶级数与傅里叶变换
2.2能量谱密度与功率谱密度
2.3线性时不变系统
商品详情

 基本详情信息

 书名:通信原理(第4版)

 ISBN:9787563544271

 定价:56.00

 作者:周炯槃、庞沁华、续大我、吴伟陵、杨鸿文

 出版社:北京邮电大学出版社有限公司

 出版时间:2015-08

 其他信息

 纸张:胶版纸

 页数:419

 尺寸:16开

 版次:4

 正文语种:简体中文...

Shipping Overview: 

Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

International Shipping: Currently, we only ship within the USA. 

Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

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