通信原理简明教程

Brand: 机械工业出版社    Sold By: EM China
通信原理简明教程
通信原理简明教程
通信原理简明教程
通信原理简明教程

通信原理简明教程

Brand: 机械工业出版社    Sold By: EM China
$32.05 In Stock
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November2024
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27
November2024
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通信原理简明教程

通信原理简明教程

$32.05

内容简介

  本书以现代通信系统为背景,以点对点的电信号通信为主线,全面介绍通信的基本工作原理和分析方法。内容包括通信的基本概念、模拟调制系统、信源编码、数字信号的基带传输系统、数字信号的调制传输系统、差错控制与信道编码和同步原理。本书涵盖了工科电类非通信专业对通信原理教学的基本需要,可作为自动化、电气工程与自动化、电子信息工程、光电信息工程、检测技术与仪表和计算机应用技术等专业的本科生和专科生教材。本书内容简洁,语言流畅,各章配有丰富...

Product Details

内容简介

  本书以现代通信系统为背景,以点对点的电信号通信为主线,全面介绍通信的基本工作原理和分析方法。内容包括通信的基本概念、模拟调制系统、信源编码、数字信号的基带传输系统、数字信号的调制传输系统、差错控制与信道编码和同步原理。本书涵盖了工科电类非通信专业对通信原理教学的基本需要,可作为自动化、电气工程与自动化、电子信息工程、光电信息工程、检测技术与仪表和计算机应用技术等专业的本科生和专科生教材。本书内容简洁,语言流畅,各章配有丰富的例题和习题,紧密联系工程实际,基本物理概念叙述清楚,理论分析脉络清晰,没有冗长繁琐的数学推导,读者只要先修过微积分、电路和电子技术、信号与系统等课程,就能顺利地阅读和自学。因此,本书也可作为相关工程技术人员的专业培训教材或参考用书。本书配有免费电子课件,欢迎使用本书作教材的老师发邮件到Jinacmp@163?com索取,或登录www?cmpedu?com注册下载。

目  录
第1章 通信的基本概念
 1.1通信与通信系统
 1.1.1通信
 1.1.2通信系统
 1.2信息与信息的量度
 1.2.1信息、信号与消息
 1.2.2信息的量度
 1.3信道及信道容量
 1.3.1信道的数学模型
 1.3.2信道容量
 1.4通信系统的主要性能指标
 1.4.1通信系统的有效性
 1.4.2通信系统的可靠性
 *1.5随机信号分析基础

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

 

内容简介

  本书以现代通信系统为背景,以点对点的电信号通信为主线,全面介绍通信的基本工作原理和分析方法。内容包括通信的基本概念、模拟调制系统、信源编码、数字信号的基带传输系统、数字信号的调制传输系统、差错控制与信道编码和同步原理。本书涵盖了工科电类非通信专业对通信原理教学的基本需要,可作为自动化、电气工程与自动化、电子信息工程、光电信息工程、检测技术与仪表和计算机应用技术等专业的本科生和专科生教材。本书内容简洁,语言流畅,各章配有丰富的例题和习题,紧密联系工程实际,基本物理概念叙述清楚,理论分析脉络清晰,没有冗长繁琐的数学推导,读者只要先修过微积分、电路和电子技术、信号与系统等课程,就能顺利地阅读和自学。因此,本书也可作为相关工程技术人员的专业培训教材或参考用书。本书配有免费电子课件,欢迎使用本书作教材的老师发邮件到Jinacmp@163?com索取,或登录www?cmpedu?com注册下载。

目  录
第1章 通信的基本概念
 1.1通信与通信系统
 1.1.1通信
 1.1.2通信系统
 1.2信息与信息的量度
 1.2.1信息、信号与消息
 1.2.2信息的量度
 1.3信道及信道容量
 1.3.1信道的数学模型
 1.3.2信道容量
 1.4通信系统的主要性能指标
 1.4.1通信系统的有效性
 1.4.2通信系统的可靠性
 *1.5随机信号分析基础

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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