作者: exorbitant 時間: 2025-3-21 23:40 作者: infinite 時間: 2025-3-22 04:15 作者: moratorium 時間: 2025-3-22 07:52
Scientific Literature: Writing an Article,ngs of code discriminator S-curve leads to the deviation of the loop control is analyzed. Focused on a more realistic situation of limited bandwidth, the multipath performance and tracking accuracy is analyzed. Simulation results show that the smaller front-end bandwidth, the approximation performan作者: Rebate 時間: 2025-3-22 09:46
Chairing a Radiological Session,ode, which approaches the performance of random sequence of length NL. The proposed method is applicable to civil GNSS signal designing, and is helpful to improve the receiving performance in challenge environment without distinct additional complexity, which will be attractive to GNSS users around 作者: FIR 時間: 2025-3-22 13:32
Radiological Conversation Guide,lihood ratio of system state with detection threshold. By taking advantage of the relationship in statistical values between the total cumulative likelihood ratio and partial cumulative likelihood ratio, the number of fault satellite can be determined. Based on the real GPS raw data, the simulation 作者: FIR 時間: 2025-3-22 20:34
Chairing a Radiological Session, residual satellite clock errors depends on the quality of the products used. The residual errors in PPP are expected to be bigger than those in cRTK. These errors have significant negative impacts on ambiguity validation and integrity monitoring. This paper addresses these challenges.A Doubly Non-C作者: Genteel 時間: 2025-3-22 21:38 作者: 裹住 時間: 2025-3-23 01:36 作者: 柳樹；枯黃 時間: 2025-3-23 06:08
CBFH: Coherent Binary Frequency-Hopping Multiplexing for BeiDou B2 Signalared with AltBOC, TD-AltBOC and ACED. The Results show that the spectrum of CBFH is similar to AltBOC, TD-AltBOC and ACED. CBFH has the same performance as TD-AltBOC when two-level sub-carrier was adopted; CBFH has the best performance when its complexity as the same as AltBOC or ACED, or CBFH has t作者: 抑制 時間: 2025-3-23 09:49
Tracking and Multipath Performance Analysis of the MBOC Approximation by BOC Modulation in Band-Limings of code discriminator S-curve leads to the deviation of the loop control is analyzed. Focused on a more realistic situation of limited bandwidth, the multipath performance and tracking accuracy is analyzed. Simulation results show that the smaller front-end bandwidth, the approximation performan作者: 刀鋒 時間: 2025-3-23 17:09
PRIS: A Novel Complex Sequence Construction Methodode, which approaches the performance of random sequence of length NL. The proposed method is applicable to civil GNSS signal designing, and is helpful to improve the receiving performance in challenge environment without distinct additional complexity, which will be attractive to GNSS users around 作者: 媒介 時間: 2025-3-23 21:41
Application of Neural Network Aided Particle Filter in GPS Receiver Autonomous Integrity Monitoringlihood ratio of system state with detection threshold. By taking advantage of the relationship in statistical values between the total cumulative likelihood ratio and partial cumulative likelihood ratio, the number of fault satellite can be determined. Based on the real GPS raw data, the simulation 作者: Progesterone 時間: 2025-3-24 00:18 作者: Dendritic-Cells 時間: 2025-3-24 03:28 作者: Intercept 時間: 2025-3-24 09:51
1876-1100 ofessor at Navigation Headquarters, CAS; .LU Mingquan .is a professor at Department of Electronic Engineering of Tsinghua University..978-3-662-51517-4978-3-642-54743-0Series ISSN 1876-1100 Series E-ISSN 1876-1119 作者: florid 時間: 2025-3-24 12:39 作者: Focus-Words 時間: 2025-3-24 15:34 作者: Pedagogy 時間: 2025-3-24 22:57 作者: 乳汁 時間: 2025-3-25 03:01
Chairing a Radiological Session,ce such as the time to first fix. Considering the message reading point as a random variable and creating ephemeris acquisition time as a function of the reading time, we integrated the acquisition time of the ephemeris in GPS L2C CNAV random data block and L1C CNAV2 stationary message structure by 作者: Ingratiate 時間: 2025-3-25 07:23
https://doi.org/10.1007/978-3-540-29329-3 signal. It can achieve better code tracking accuracy and anti-multipath performance, thus Galileo E5 signal uses AltBOC (15, 10) modulation. However, the four signal components of AltBOC modulation have to be allocated the same power. To solve this problem, we propose a constant envelope dual-sideb作者: antipsychotic 時間: 2025-3-25 10:27 作者: Champion 時間: 2025-3-25 13:56 作者: 輪流 時間: 2025-3-25 15:52
Scientific Literature: Writing an Article,t. The pre-detection integration time of pilot channel is potential to exceed the bit width, so the receiver could obtain better acquisition sensibility. However, the benefit from pilot channel has not been thoroughly analyzed. The equivalent ideal detector factor is used to compare the performance 作者: 蘑菇 時間: 2025-3-25 20:51
Scientific Literature: Writing an Article,multipath performance with the respect to BOC modulation, but also brings the problem that should be required to deal with two different rates of sub-carrier BOC signals are multiplexed, and require a higher sampling rate and bandwidth of the front end which increased design complexity of the receiv作者: 秘傳 時間: 2025-3-26 01:48 作者: Electrolysis 時間: 2025-3-26 07:23 作者: 本土 時間: 2025-3-26 11:57
Basic Communication Skills in Medicine,requency constant envelope multiplexing is one of the hottest issues and has been attracted great attention from researchers and system builders. ACE-BOC is a recently proposed technique, which allows the multiplexing of four or less arbitrary signals into a composite signal with constant envelope. 作者: Antagonist 時間: 2025-3-26 13:37 作者: 驕傲 時間: 2025-3-26 20:19
Chairing a Radiological Session, property of Pseudo Random Noise (PRN) code play an important role of affecting its rejection performance to Narrow Band Interference (NBI) and Multiple Address Interference (MAI). In order to mitigate the cross-correlation performance degradation due to tiered code construction, this paper proposes作者: CREST 時間: 2025-3-26 21:55
Radiological Conversation Guide,filter based on neural network algorithm is proposed. Using back-propagation (BP) neural network to adjust the particles with too high and too low weight, firstly, the larger weight particles are respectively splitted into two smaller weight particles. Then, abandoning the particles with very small 作者: commonsense 時間: 2025-3-27 05:04 作者: audiologist 時間: 2025-3-27 06:04 作者: 寒冷 時間: 2025-3-27 11:25
https://doi.org/10.1007/978-3-540-29329-3lts show that the orbit errors present certain periodicity for GEO and IGSO satellites. The SISRE of COMPASS is larger than GPS and GLONASS overall. However, the broadcast ephemeris of COMPASS appears regular changes in short time. Based on this, we establish different rapid correction models for CO作者: Conscientious 時間: 2025-3-27 13:45
Letters to Editors of Radiological Journals,cluding timeliness, integrality, flexibility, reliability and extendibility, but also user’s use-cost. Different from other GNSS systems, the BDS system broadcasts not only the basic navigation messages but also augmentation messages including difference and integrity data. In this paper, the design作者: 四牛在彎曲 時間: 2025-3-27 20:26 作者: 藐視 時間: 2025-3-28 01:18 作者: sterilization 時間: 2025-3-28 06:06
978-3-662-51517-4Springer-Verlag Berlin Heidelberg 2014作者: 導師 時間: 2025-3-28 08:50
Jiadong Sun,Wenhai Jiao,Mingquan LuCollections of CSNC2014 papers.Achievements and progress of BDS.Latest studies of Global Navigation Satellite System in China.Hot topics in Global Navigation Satellite System.Includes supplementary ma作者: bacteria 時間: 2025-3-28 14:03
Lecture Notes in Electrical Engineeringhttp://image.papertrans.cn/c/image/225378.jpg作者: 慢跑鞋 時間: 2025-3-28 16:51
The Research of the High-Altitude BDS Weak Signal Acquisitionthis paper achieves the receiving power and Doppler-shift of the High-Earth orbit receiver by simulating the navigation signal characteristic which based on the STK (Satellite Tool Kit). In order to solve the problem of the secondary code witch modulated on BDS B1I and improve the acquisition sensib作者: Confess 時間: 2025-3-28 21:46
GNSS Message Structure Optimizationce such as the time to first fix. Considering the message reading point as a random variable and creating ephemeris acquisition time as a function of the reading time, we integrated the acquisition time of the ephemeris in GPS L2C CNAV random data block and L1C CNAV2 stationary message structure by 作者: 過份艷麗 時間: 2025-3-29 00:25 作者: 防水 時間: 2025-3-29 05:57 作者: indifferent 時間: 2025-3-29 09:10
Navigation Signal Acquisition Method Based on Multiple DBZP Fusiongnals with equal spreading code and bit periods, resulting in a potential bit sign transition in each primary code period of the received signal segments. The double block zero padding (DBZP) method and its improved versions overcome the correlation peak loss caused by bit sign transitions, but 50?%作者: Polydipsia 時間: 2025-3-29 12:38 作者: 遺傳 時間: 2025-3-29 18:01 作者: Sputum 時間: 2025-3-29 19:45
A Proposed Selection and Allocation of Spread-Spectrum Code for Compass B1C Signalileo. As an important step in B1C signal design, the design of spread-spectrum (SS) code involves construction, selection and allocation of the codes. Based on an analysis of the L1-band pseudo-code characteristics of GPS and Galileo, the researcher optimally selected 100 SS codes from the optimal c作者: 一回合 時間: 2025-3-30 00:18
The Performance of Interferometric Ranging Systems with Hopping Frequencies in Benign Environment anems. This paper explores the performance of IRHF systems in benign environments and under partial-band jamming (PBJ) conditions. The outlier probability is used to evaluate the ranging accuracy of IRHF systems. Employing an approximation tool called the Union Bound (UB), we derive a formula of the o作者: cochlea 時間: 2025-3-30 04:41
Optimized Asymmetric Dual-Frequency Constant Envelope Multiplexing Techniquerequency constant envelope multiplexing is one of the hottest issues and has been attracted great attention from researchers and system builders. ACE-BOC is a recently proposed technique, which allows the multiplexing of four or less arbitrary signals into a composite signal with constant envelope. 作者: 不理會 時間: 2025-3-30 11:43 作者: Ingest 時間: 2025-3-30 13:24
PRIS: A Novel Complex Sequence Construction Method property of Pseudo Random Noise (PRN) code play an important role of affecting its rejection performance to Narrow Band Interference (NBI) and Multiple Address Interference (MAI). In order to mitigate the cross-correlation performance degradation due to tiered code construction, this paper proposes作者: hypertension 時間: 2025-3-30 16:58 作者: 兇兆 時間: 2025-3-30 22:27
Receiver Autonomous Integrity Monitoring for Fixed Ambiguity Precise Point Positionings, ambiguity validation and integrity monitoring. Research to date has focused on error modelling and ambiguity resolution. The ambiguity validation and integrity monitoring is still to be investigated in detail. Early research on PPP integrity has addressed the transferability of the Carrier phase 作者: 蝕刻術 時間: 2025-3-31 03:32
