蓝牙定位：隐形的空间感知网络，千亿市场的连接基石
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深度资讯
蓝牙定位算法实现对比分析与更高精度实现策略
第一部分：核心算法对比分析 蓝牙定位算法可根据其基本原理和所需基础设施进行分类。以下是对最常见方法的对比分析：
From Connectivity to Positioning: Bluetooth’s Location Revolution and Future Vision
Bluetooth technology, once synonymous with wireless audio and peripheral connectivity, has quietly...
Rafavi 便携式导航信号模拟、采集、回放及测试设备
便携式导航信号采集及测试设备 可以完成30MHz~3.6GHz模拟信号的采集和存储回放，可以模拟仿真BDS、GPS、GLONASS和GALILEO多频点干扰信号和欺诈信号，主要用于GNSS 设备与应用测试、汽车自动驾驶测试、导航干扰测试、导航欺诈测试等领域。
便携式导航信号采集及测试设备
便携式导航信号采集及测试设备 可以完成30MHz~3.6GHz模拟信号的采集和存储回放，可以模拟仿真BDS、GPS、GLONASS和GALILEO多频点干扰信号和欺诈信号，主要用于GNSS 设备与应用测试、汽车自动驾驶测试、导航干扰测试、导航欺诈测试等领域。
Bowers & Wilkins Pi7 S2 TWS bluetooth earbuds
High-resolution sound and crystal-clear voice calls, an industry-first wireless audio retransmission case.
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UWB+GNSS Indoor and outdoor integrated positioning module
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商界市场
半价出售北京精装复式Loft-恒大未来城小一居
念坛公园、永定公园双园环绕的养老宜居小区，房东半价挥泪出售。
Rafavi Smart EV Chargers
✅ Core Positioning: Professional smart EV charging solution provider, covering AC slow-charge & DC...
供应链金融，助力企业融资
与银行联合运营，以供应链项目合作的方式，在资金、环境、数字化转型等方面做孵化运作。
低功耗蓝牙双轴倾角传感器
独特性、创新性、高集成性的智能低功耗产品
便携式导航信号采集及测试设备
便携式导航信号采集及测试设备 可以完成30MHz~3.6GHz模拟信号的采集和存储回放，可以模拟仿真BDS、GPS、GLONASS和GALILEO多频点干扰信号和欺诈信号，主要用于GNSS 设备与应用测试、汽车自动驾驶测试、导航干扰测试、导航欺诈测试等领域。
专业收音降噪直播麦克风
专业收音降噪直播麦克风 (抖音/直播/短视频/录音专用)
Rafavi 蓝牙耳塞 R10
.短视频控制器 智能体验可支持短视频app点赞、上下翻页、音量加减。 .可自定义照片屏保支持手机本地相册图片 .智能一拖二耳机支持同时连接手机和充电仓，随心切换本地音乐和手机音乐
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概述
The BM20/23 stereo audio module is a Bluetooth v5.0 (BDR/EDR) audio module for designers to add wireless audioThe BM20/23 stereo audio module is a Bluetooth v5.0 (BDR/EDR) audio module for designers to add wireless audioand voice applications to their products. This Bluetooth SIG-certified module provides a complete wireless solutionwith Bluetooth stack, integrated antenna, and worldwide radio certifications in a compact surface mount package.This stereo module contains a built-in Li-Ion charger and a digital audio interface (BM23). It supports HSP, HFP, SPP,A2DP, and AVRCP profiles. Both AAC and SBC Codecs are supported for A2DP.
Note: The customers must connect their own external analog Codec/DSP/amplifier and MCU for audio output.
Audio processor:
• Support 64 Kbps A-Law, μ-Law PCM format/Continuous Variable Slope Delta Modulation (CVSD) for SCO
• Support 64 Kbps A-Law, μ-Law PCM format/Continuous Variable Slope Delta Modulation (CVSD) for SCOChannel Operation
• Noise Reduction (NR) and Acoustic Echo Cancellation (ACE)
• Sub-Band Coding (SBC) and Optional Advanced Audio Coding (AAC) Decoding
• Packet Loss Concealment (PLC)
• Four Languages (Chinese/ English/ Spanish/ French) Voice Prompts Support (20 events for each language)using the IS20XXS_UI tool
• Serial Copy Management System (SCMS-T) Content Protection
Mic in:
BM20:2个
BM23:1个
Analog Audio Out
BM20:没有
BM23:有
Digital Audio Out
BM20:有
BM23:没有
特性
Bluetooth Classic (BDR/EDR)
Embedded Bluetooth stack
SBC, ACC Codecs
Stereo analog output, one stereo analog microphone, aux input
UART, two LEDs, GPIOs
Built-in voice prompts
Transparent UART mode for seamless serial data over UART interface
Easy to configure with Windows GUI or directly via an MCU
Compact surface mount module: 29 x 15 x 2.5 mm
Castellated surface mount pads for easy and reliable host PCB mounting
RoHS compliant
Worldwide RF regulatory certifications
PCB Antenna
Embedded Bluetooth stack
SBC, ACC Codecs
Stereo analog output, one stereo analog microphone, aux input
UART, two LEDs, GPIOs
Built-in voice prompts
Transparent UART mode for seamless serial data over UART interface
Easy to configure with Windows GUI or directly via an MCU
Compact surface mount module: 29 x 15 x 2.5 mm
Castellated surface mount pads for easy and reliable host PCB mounting
RoHS compliant
Worldwide RF regulatory certifications
PCB Antenna
特性
__方框图
__应用说明
• Bluetooth Sound Bar
• Bluetooth Stereo •Speaker Phone
开发板
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