tracking gate 中文意思是什麼
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In this paper, research on the algorithm of complete digital if and baseband transmission system and the realization of transmitter and receiver. / 4 - dqpsk is chosen as digital modulation scheme. the scheme of demodulation is baseband differential detection. sliding correlator can realize the symbol synchronous acquisition ; early - late gate synchronizer is used to do symbol synchronous tracking
系統的發射機選定/ 4 - dqpsk為調制方式，接收機採用基帶差分解調的非相干解調方式，滑動相關器捕獲發送的pn序列，早遲門同步器跟蹤符號同步，使用相關器對同步后的符號進行最佳判決，並在這些演算法實現的基礎上，實現了直接序列擴頻和解擴技術。 -
The tracking method of interference delay is studied and simulated. referring to late - early loop gate, a method that applies to this system is proposed. slight adjustment of delay difference is done by interpolation, so the whole digital structure is obtained
以數字通信中的遲-早門環路為基礎，提出了適用於pcma系統的跟蹤環路，並且利用插值的方法實現了時延差的微調，得到全數字化的設計結構。 -
Influence of tracking gate upon multiple target tracking system
跟蹤門對多目標跟蹤系統性能的影響 -
To realize the real - time tracking image target, we use the cpld ( c ' omplex programmable logic device ) to control the system logic and use ipga ( field programmable gate array ) to preprocessing the image
為了滿足系統的實時性要求，運用大規模可編程邏輯陣列cpld進行邏輯控制和現場可編程門陣列fpga對採集的視頻圖像做預處理。 -
The system used hight - performance dsp ( tms320c6202 ) to realize the real - time image object tracking algorithm, used large - scaled programmable logical array cpld to control logic and field programmable gate array fpga to preprocessing the image
其中運用了高性能dsp （ tms320c6202 ）完成實時圖像目標處理演算法，並結合大規模可編程邏輯陣列cpld進行邏輯控制和現場可編程門陣列fpga對採集的視頻圖像做預處理，滿足了系統的實時性。 -
All of above make the miss distance of the missile difficult to estimate in shooting range. in order to solve these problems, a novel method for detecting and tracking small moving point target in image sequence is proposed in this paper, based on combination of the correlation of multi - frames and wave gate techniques. especially, the qualifications to confirm the target and the establishment of the wave gate based on size and characteristic moving parameters of the target are stressed in the paper
針對目前靶場所面臨的測量目標小、距離遠、目標與背景對比度小，不具有形狀信息的實際問題，提出了一種基於多幀相關技術與波門選通技術相結合的快速目標識別與跟蹤方法，特別探討了多幀相關技術中目標確定的理論判據，並綜合考慮目標的尺寸因素和目標的運動特徵研究了一種新的波門設定方案。 -
The methods about tracking target are introduced into two aspects which are gate tracking and correlative tracking
圖像跟蹤的方法則是從波門跟蹤和相關跟蹤兩個方面作了介紹。 -
The point is put on how the size and the number of tracking gate affect the performance of target tracking initialization, then the scheme of selecting size and the number of tracking gate is brought out
該演算法討論了多假設波門大小、多假設波門個數對多假設波門演算法航跡起始性能的影響，並提出了多假設波門大小、多假設波門個數的選擇方案。 -
( 2 ) data association method of multi - target tracking has also been researched. we study the distance - gate which has big effect on data association, analyze global distance - gate and elliptical distance - gate. then we adopt different distance - gate according to different trajectory state
首先研究了對數據關聯效果影響比較大的相關門，分析了球形相關門和橢球形相關門，並根據航跡狀態的不同選擇不同形狀的相關門。
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