在多用戶偵測系統上，訊號偵測系統及方法有降低干擾的效果。依據包含在一接收訊號r（t）上之一些用戶訊號接收機定義一個符元的頁框，其中包含至少一個窗口。在一頁框的窗口上，一個單一用戶在多用戶系統中的符元振幅是依據已接收用戶訊號的一些反射訊號路徑來近似。一擾動的修正值，是依據一個相關矩陣來計算的。一個單一用戶訊號符元振幅的推估，是在頁框上的一些窗口上所計算出來的。單一用戶訊號係在整個訊號的符元振幅之頁框計算過程內被偵測到。在一個多細胞分碼多重存取系統中，為降低其他細胞用戶的干擾，其符元碼係被修正至包含多個偶數碼及多個奇數碼。該偶數碼及該奇數碼被對稱地插入一個干擾降低窗口。假如符元碼的延遲不齊是小於該干擾降低窗口以及把偶數碼指派到第一細胞，同時把奇數碼指派到數個相鄰之細胞時，則該相鄰細胞之干擾會消失不見。 In signal detection system and method implemented to reduce the effects of interference in multi-user detection systems , a receiver defines a frame of the symbols containing at least one window based upon a number of user signals contained in a received signal r（t） . A symbol amplitude of a single-user in the multi-user system is approximated over the window of the frame based on a number of reflected signal paths of the received user signal . A perturbative correction value is calculated based upon a correlation matrix . An estimation of the symbol amplitude of the single-user signal is calculated over one or a number of windows of the frame . The single-user signal is detected when the symbol amplitudes of the entire signal within the frame has been calculated . To reduce the number of interfering users in a multicell CDMA system , the symbol codes are modified to include an even code and an odd code . The even and odd codes are symmetrically separated over the duration of the symbol to form an interference reduction window . If the delay offsets of the symbol codes are less than the interference reduction window and the eve
技術摘要-中文: 在多用戶偵測系統上，訊號偵測系統及方法有降低干擾的效果。依據包含在一接收訊號r（t）上之一些用戶訊號接收機定義一個符元的頁框，其中包含至少一個窗口。在一頁框的窗口上，一個單一用戶在多用戶系統中的符元振幅是依據已接收用戶訊號的一些反射訊號路徑來近似。一擾動的修正值，是依據一個相關矩陣來計算的。一個單一用戶訊號符元振幅的推估，是在頁框上的一些窗口上所計算出來的。單一用戶訊號係在整個訊號的符元振幅之頁框計算過程內被偵測到。在一個多細胞分碼多重存取系統中，為降低其他細胞用戶的干擾，其符元碼係被修正至包含多個偶數碼及多個奇數碼。該偶數碼及該奇數碼被對稱地插入一個干擾降低窗口。假如符元碼的延遲不齊是小於該干擾降低窗口以及把偶數碼指派到第一細胞，同時把奇數碼指派到數個相鄰之細胞時，則該相鄰細胞之干擾會消失不見。 In signal detection system and method implemented to reduce the effects of interference in multi-user detection systems , a receiver defines a frame of the symbols containing at least one window based upon a number of user signals contained in a received signal r（t） . A symbol amplitude of a single-user in the multi-user system is approximated over the window of the frame based on a number of reflected signal paths of the received user signal . A perturbative correction value is calculated based upon a correlation matrix . An estimation of the symbol amplitude of the single-user signal is calculated over one or a number of windows of the frame . The single-user signal is detected when the symbol amplitudes of the entire signal within the frame has been calculated . To reduce the number of interfering users in a multicell CDMA system , the symbol codes are modified to include an even code and an odd code . The even and odd codes are symmetrically separated over the duration of the symbol to form an interference reduction window . If the delay offsets of the symbol codes are less than the interference reduction window and the eve
一種具型態控制之型態相依編碼方法，係在結合型態分類及數碼集合概念之編碼方法中，更加入透過型態控制的概念使整體編碼的直流成分控制(DC-Free)效果提昇的方法。其主要係於一定間隔之數碼字編碼程序後加入特定的型態控制數碼字，以增加後續編碼程序在數碼字上的可選擇性，進而改善直流成分控制的能力。 In view of the foregoing, the present invention develops a type dependency modulation method with type control. It uses the concept of type-control in the conventional type dependency modulation methods that only integrate code word type and code word set. Eventually, it achieves the goal of increase the DC component control ability after modulation. Its primary technical feature is the following. When the type dependency modulation method runs and reaches a certain interval (i.e. after a certain length of data words encoding procedure), a type-control code word is added in the code word sequence. By changing the type, this renders more code words to be selected when encodes the next data word. Besides, the added type-control code words have to satisfy the (d, k) and type constraints by the type dependency modulation method. To achieve the above-mentioned objective, the disclosed method includes the steps of: (a) executing a encoding procedure to find the code word corresponding to a data word; (b) accumulating a counter value after completing the encoding procedure of each data word; (c) executing an insertion encoding procedure of a type-control code word when the counter value reaches a predetermined interval; (d) resetting the counter value to zero after inserting the type-control code word; and repeating steps (a) to (d) until
技術摘要-中文: 一種具型態控制之型態相依編碼方法，係在結合型態分類及數碼集合概念之編碼方法中，更加入透過型態控制的概念使整體編碼的直流成分控制(DC-Free)效果提昇的方法。其主要係於一定間隔之數碼字編碼程序後加入特定的型態控制數碼字，以增加後續編碼程序在數碼字上的可選擇性，進而改善直流成分控制的能力。 In view of the foregoing, the present invention develops a type dependency modulation method with type control. It uses the concept of type-control in the conventional type dependency modulation methods that only integrate code word type and code word set. Eventually, it achieves the goal of increase the DC component control ability after modulation. Its primary technical feature is the following. When the type dependency modulation method runs and reaches a certain interval (i.e. after a certain length of data words encoding procedure), a type-control code word is added in the code word sequence. By changing the type, this renders more code words to be selected when encodes the next data word. Besides, the added type-control code words have to satisfy the (d, k) and type constraints by the type dependency modulation method. To achieve the above-mentioned objective, the disclosed method includes the steps of: (a) executing a encoding procedure to find the code word corresponding to a data word; (b) accumulating a counter value after completing the encoding procedure of each data word; (c) executing an insertion encoding procedure of a type-control code word when the counter value reaches a predetermined interval; (d) resetting the counter value to zero after inserting the type-control code word; and repeating steps (a) to (d) until
